Attachment 574996 Details for Bug 808934 – strace with the patched lsusb

strace with the patched lsusb

lssusb-t-strace-20120403.1.out (text/plain), 46.11 KB, created by Reartes Guillermo on 2012-04-03 22:10:38 UTC

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Creator: Reartes Guillermo

Created: 2012-04-03 22:10:38 UTC

Size: 46.11 KB

patch

obsolete

>[root@fnext Downloads]# strace lsusb -t
>execve("/usr/bin/lsusb", ["lsusb", "-t"], [/* 51 vars */]) = 0
>brk(0)                                  = 0x1009000
>mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd37318b000
>access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
>open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
>fstat(3, {st_mode=S_IFREG|0644, st_size=92926, ...}) = 0
>mmap(NULL, 92926, PROT_READ, MAP_PRIVATE, 3, 0) = 0x7fd373170000
>close(3)                                = 0
>open("/lib64/libusb-1.0.so.0", O_RDONLY|O_CLOEXEC) = 3
>read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\0*\240F=\0\0\0"..., 832) = 832
>fstat(3, {st_mode=S_IFREG|0755, st_size=62480, ...}) = 0
>mmap(0x3d46a00000, 2155264, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x3d46a00000
>mprotect(0x3d46a0e000, 2093056, PROT_NONE) = 0
>mmap(0x3d46c0d000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xd000) = 0x3d46c0d000
>close(3)                                = 0
>open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
>read(3, "\177ELF\2\1\1\3\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0@\30\3426=\0\0\0"..., 832) = 832
>fstat(3, {st_mode=S_IFREG|0755, st_size=2065592, ...}) = 0
>mmap(0x3d36e00000, 3892376, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x3d36e00000
>mprotect(0x3d36fac000, 2097152, PROT_NONE) = 0
>mmap(0x3d371ac000, 24576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1ac000) = 0x3d371ac000
>mmap(0x3d371b2000, 17560, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3d371b2000
>close(3)                                = 0
>open("/lib64/librt.so.1", O_RDONLY|O_CLOEXEC) = 3
>read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0`\"\2407=\0\0\0"..., 832) = 832
>fstat(3, {st_mode=S_IFREG|0755, st_size=47664, ...}) = 0
>mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd37316f000
>mmap(0x3d37a00000, 2128952, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x3d37a00000
>mprotect(0x3d37a07000, 2093056, PROT_NONE) = 0
>mmap(0x3d37c06000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x6000) = 0x3d37c06000
>close(3)                                = 0
>open("/lib64/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
>read(3, "\177ELF\2\1\1\0\0\0\0\0\0\0\0\0\3\0>\0\1\0\0\0\360j`7=\0\0\0"..., 832) = 832
>fstat(3, {st_mode=S_IFREG|0755, st_size=144520, ...}) = 0
>mmap(0x3d37600000, 2208776, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0x3d37600000
>mprotect(0x3d37616000, 2097152, PROT_NONE) = 0
>mmap(0x3d37816000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x16000) = 0x3d37816000
>mmap(0x3d37818000, 13320, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x3d37818000
>close(3)                                = 0
>mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd37316e000
>mmap(NULL, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd37316c000
>arch_prctl(ARCH_SET_FS, 0x7fd37316c740) = 0
>mprotect(0x3d371ac000, 16384, PROT_READ) = 0
>mprotect(0x3d37816000, 4096, PROT_READ) = 0
>mprotect(0x3d37c06000, 4096, PROT_READ) = 0
>mprotect(0x3d46c0d000, 4096, PROT_READ) = 0
>mprotect(0x618000, 4096, PROT_READ)     = 0
>mprotect(0x3d36c1f000, 4096, PROT_READ) = 0
>munmap(0x7fd373170000, 92926)           = 0
>set_tid_address(0x7fd37316ca10)         = 2187
>set_robust_list(0x7fd37316ca20, 0x18)   = 0
>rt_sigaction(SIGRTMIN, {0x3d37606650, [], SA_RESTORER|SA_SIGINFO, 0x3d3760efe0}, NULL, 8) = 0
>rt_sigaction(SIGRT_1, {0x3d376066d0, [], SA_RESTORER|SA_RESTART|SA_SIGINFO, 0x3d3760efe0}, NULL, 8) = 0
>rt_sigprocmask(SIG_UNBLOCK, [RTMIN RT_1], NULL, 8) = 0
>getrlimit(RLIMIT_STACK, {rlim_cur=8192*1024, rlim_max=RLIM_INFINITY}) = 0
>brk(0)                                  = 0x1009000
>brk(0x102a000)                          = 0x102a000
>brk(0)                                  = 0x102a000
>open("/usr/share/hwdata/usb.ids", O_RDONLY) = 3
>fstat(3, {st_mode=S_IFREG|0644, st_size=451747, ...}) = 0
>mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd37318a000
>read(3, "#\n#\tList of USB ID's\n#\n#\tMaintai"..., 4096) = 4096
>read(3, "Bluetooth Device\n\t6440  WML-C52A"..., 4096) = 4096
>read(3, "bcam\n\t1c02  PhotoSmart A710 seri"..., 4096) = 4096
>read(3, "FP\n\t5711  PhotoSmart C4100 serie"..., 4096) = 4096
>read(3, "-Xchange Adapter\n\tadcc  Composit"..., 4096) = 4096
>read(3, "310  K590 Printer, Self-Service\n"..., 4096) = 4096
>read(3, "\n\t05b7  Digital Camera\n\t05b8  Di"..., 4096) = 4096
>read(3, " (STK7700P based)\n0414  Giga-Byt"..., 4096) = 4096
>read(3, "(MTP)\n\t4151  Zen Vision:M (mtp)\n"..., 4096) = 4096
>read(3, "orp.\n\t0001  Integrated Hub\n\t0acd"..., 4096) = 4096
>read(3, "nter\n\t007c  Lexmark X1110/X1130/"..., 4096) = 4096
>read(3, "\n\tf001  FT2232H Hi-Speed JTAG IC"..., 4096) = 4096
>read(3, "  Sidewinder Strategic Commander"..., 4096) = 4096
>read(3, "ed Pocket PC 2003\n\t043d  Becker "..., 4096) = 4096
>read(3, "feCam HD-5000\n\t930a  ISOUSB.SYS "..., 4096) = 4096
>read(3, "s Pro)\n\t08c5  QuickCam Pro 5000\n"..., 4096) = 4096
>read(3, "f  F710 Wireless Gamepad [XInput"..., 4096) = 4096
>read(3, "Player\n\t0163  GoGear SA1100\n\t016"..., 4096) = 4096
>read(3, "018  Studio Mouse\n\t101d  Mouse*i"..., 4096) = 4096
>brk(0)                                  = 0x102a000
>brk(0x104b000)                          = 0x104b000
>read(3, "UX256 MIDI I/F\n\t1001  MU1000\n\t10"..., 4096) = 4096
>read(3, "h 7600 Scanner\n\t0221  OneTouch 5"..., 4096) = 4096
>read(3, "219  CanoScan 9950F\n\t221b  CanoS"..., 4096) = 4096
>read(3, "ot S410 Digital Elph\n\t30bb  Powe"..., 4096) = 4096
>read(3, "\t4482  Serial Converter\n\t4485  S"..., 4096) = 4096
>read(3, "tylus Photo RX560/580/590 (PM-A8"..., 4096) = 4096
>read(3, "800/6800 Zoom (PC CAM)\n\t0108  Fi"..., 4096) = 4096
>read(3, "1  PIC24F Starter Kit\n\t900a  PIC"..., 4096) = 4096
>read(3, "ader\n\t5292  SCL011 RFID reader\n\t"..., 4096) = 4096
>read(3, "  MITs Sync\n\t6632  MITs Sync\n\t66"..., 4096) = 4096
>read(3, " HL-5250DN Printer\n\t002c  Printe"..., 4096) = 4096
>read(3, "ALink SPIF225A\n\t1528  SPCA1527A/"..., 4096) = 4096
>read(3, "nk RT2870]\n\t805e  F5D8053 N Wire"..., 4096) = 4096
>read(3, "nstitut of Microelectronic & Mec"..., 4096) = 4096
>read(3, "G-TJ35 PDA Serial\n\t016a  Clie PE"..., 4096) = 4096
>read(3, "ebooks [pwc]\n\ta000  SWL-2100U\n\ta"..., 4096) = 4096
>read(3, "03  UC-SGT\n\t5004  UC-SGT\n\t6008  "..., 4096) = 4096
>brk(0)                                  = 0x104b000
>brk(0x106c000)                          = 0x106c000
>read(3, "Fritz!WLAN [Texas Instruments TN"..., 4096) = 4096
>read(3, "l\n\tb00a  PSX/USB converter\n\tb00b"..., 4096) = 4096
>read(3, " (Type 3)\n\t0032  Zip 250 (Ver 2)"..., 4096) = 4096
>read(3, "ckpad (ANSI)\n\t0224  Internal Key"..., 4096) = 4096
>read(3, "0  SIMCom SIM5218 modem\n\t9001  G"..., 4096) = 4096
>read(3, "aker X6/X6U\n\t009a  Phantom C6\n\t0"..., 4096) = 4096
>read(3, "Mbps Adapter\n05df  Silicon Visio"..., 4096) = 4096
>read(3, "cs Co., Ltd\n0607  Bridge Informa"..., 4096) = 4096
>read(3, "r CrystalEye Webcam\n\ta102  Acer/"..., 4096) = 4096
>read(3, "layer\n\t821c  MP3 Player\n\t821d  M"..., 4096) = 4096
>read(3, " XT Camera [remote mode]\n\t4017  "..., 4096) = 4096
>read(3, "l Connect Modem\n\t000b  WireSpeed"..., 4096) = 4096
>read(3, "apanese Keyboard\n06d6  Aashima T"..., 4096) = 4096
>read(3, " GamePad\n\tb000  Hercules DJ Cons"..., 4096) = 4096
>read(3, "\t4586  XBox Device\n\t4588  XBox D"..., 4096) = 4096
>read(3, "g. Co., Ltd\n077b  Linksys\n\t08be "..., 4096) = 4096
>read(3, "0790  Pro-Image Manufacturing Co"..., 4096) = 4096
>read(3, "Voice Recorder DS-330\n\t0207  Dig"..., 4096) = 4096
>brk(0)                                  = 0x106c000
>brk(0x108d000)                          = 0x108d000
>read(3, "eader (UISMA)\n\t0012  Reader (UIS"..., 4096) = 4096
>read(3, "02.11n Wireless N Adapter(rev.B)"..., 4096) = 4096
>read(3, "imax 410\n\t000e  Digimax 360\n\t001"..., 4096) = 4096
>read(3, "chi Maxell, Ltd\n\t3102  Bluetooth"..., 4096) = 4096
>read(3, "3  Pocket DV Digital Camera\n\t010"..., 4096) = 4096
>read(3, "\t3402  AES3400 Sensor\n\t3403  AES"..., 4096) = 4096
>read(3, "0 (X750_USB)\n0925  Lakeview Rese"..., 4096) = 4096
>read(3, "0U A/V Capture Audio\n\ta004  Conv"..., 4096) = 4096
>read(3, "\t0007  Reader V2\n\t0008  ZFG-9800"..., 4096) = 4096
>read(3, " 82-key backlit keyboard\n0a35  R"..., 4096) = 4096
>read(3, "Corp.\n0a5f  Zebra\n\t0009  LP2844 "..., 4096) = 4096
>read(3, "unication Camera VGP-VCC1\n\tc302 "..., 4096) = 4096
>read(3, "\n0b0b  Datamax-O'Neil\n\t106e  Dat"..., 4096) = 4096
>read(3, "nology, Inc.\n0b85  Elkat Electro"..., 4096) = 4096
>read(3, " SmartPhone Sync\n\t0a6c  SmartPho"..., 4096) = 4096
>read(3, " Mass Storage Device\n\t0178  Mass"..., 4096) = 4096
>read(3, "\n\t0204  Metrologic MS7120 Barcod"..., 4096) = 4096
>read(3, "0360/MT9V011 or MI0360SOC/MT9V11"..., 4096) = 4096
>brk(0)                                  = 0x108d000
>brk(0x10ae000)                          = 0x10ae000
>read(3, "td\n0ccc  Domex Technology Corp.\n"..., 4096) = 4096
>read(3, "y, Ltd\n0d3d  Tangtop Technology "..., 4096) = 4096
>read(3, "  Mass Storage Controller\n\t5200 "..., 4096) = 4096
>read(3, "hen Yeh Enterprise Corp.\n0db7  E"..., 4096) = 4096
>read(3, "ss Network USB Adapter\n\t9075  WL"..., 4096) = 4096
>read(3, "\t1204  Gmini XS 200\n\t1306  504 P"..., 4096) = 4096
>read(3, " Co., Ltd\n0f2f  Priva Design Ser"..., 4096) = 4096
>read(3, "ass Storage] \n\te0ef  C905 Phone "..., 4096) = 4096
>read(3, "  Winbond Electronics Corp. [hex"..., 4096) = 4096
>read(3, " Inc.\n\t3009  eHome Infrared Tran"..., 4096) = 4096
>read(3, " 1650-16 16-Port RS-232/422/485\n"..., 4096) = 4096
>read(3, "reless Modem\n\t900a  Gobi 2000 Wi"..., 4096) = 4096
>read(3, " Wireless Terminal\n\t1037  Ideos\n"..., 4096) = 4096
>read(3, "der\n13b0  PerkinElmer Optoelectr"..., 4096) = 4096
>read(3, "  DataTraveler 2.0 4GB Flash Dri"..., 4096) = 4096
>read(3, " Inc.\n14b0  StarTech.com Ltd.\n14"..., 4096) = 4096
>read(3, " USB Wireless Card\n\t0012  WUBR-2"..., 4096) = 4096
>read(3, "dem\n\t1a17  Agilent Technologies "..., 4096) = 4096
>brk(0)                                  = 0x10ae000
>brk(0x10cf000)                          = 0x10cf000
>read(3, "801  U43\n16b5  Persentec, Inc.\n\t"..., 4096) = 4096
>read(3, "asynote MX66-208W\n\taa11  Web Cam"..., 4096) = 4096
>read(3, "(v2) based USB DVB-T receiver\n\tf"..., 4096) = 4096
>read(3, "nfotech Logistic, LLC\n19b9  Data"..., 4096) = 4096
>read(3, "35  PC Camera/Webcam controller\n"..., 4096) = 4096
>read(3, "CS, INC.\n1ca0  ACCARIO Inc.\n1cac"..., 4096) = 4096
>read(3, "5523]\n\t3a03  DWL-G132 (no firmwa"..., 4096) = 4096
>read(3, " 1.0 (TDMA) chipset\n\t1801  Rainb"..., 4096) = 4096
>read(3, "0\n\t100a  MPIO FL300\n\t100b  MPIO "..., 4096) = 4096
>read(3, "AIO Printer 926\n\t5116  AIO Print"..., 4096) = 4096
>read(3, " 802.11g Adapter [Intersil ISL38"..., 4096) = 4096
>read(3, "ller from (Intel/CSR)\n\t1110  PRO"..., 4096) = 4096
>read(3, "d protocols\n\n# Syntax:\n# C class"..., 4096) = 4096
>read(3, "  VCR Audio\nAT 070a  Video Disc "..., 4096) = 4096
>read(3, "  Bicylce Crank\n\t0ce  Handle Bar"..., 4096) = 4096
>read(3, "Locking Scroll Lock\n\t085  Keypad"..., 4096) = 4096
>read(3, "tion\n\t062  Closed Caption Select"..., 4096) = 4096
>brk(0)                                  = 0x10cf000
>brk(0x10f0000)                          = 0x10f0000
>read(3, "\n\t234  AC Scroll Down\n\t235  AC S"..., 4096) = 4096
>read(3, "oning\n\t038  Cursor Mode\n\t039  Cu"..., 4096) = 4096
>read(3, "e Limit Expired\n\t044  Charging\n\t"..., 4096) = 4096
>read(3, "\n\n# HID Descriptor bCountryCode\n"..., 4096) = 1187
>read(3, "", 4096)                       = 0
>close(3)                                = 0
>munmap(0x7fd37318a000, 4096)            = 0
>openat(AT_FDCWD, "/dev/bus/usb", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 3
>getdents(3, /* 13 entries */, 32768)    = 312
>close(3)                                = 0
>uname({sys="Linux", node="fnext.espada", ...}) = 0
>stat("/sys/bus/usb/devices", {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0
>openat(AT_FDCWD, "/sys/bus/usb/devices", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 3
>getdents(3, /* 31 entries */, 32768)    = 880
>stat("/sys/bus/usb/devices/usb1/busnum", {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
>stat("/sys/bus/usb/devices/usb1/devnum", {st_mode=S_IFREG|0444, st_size=4096, ...}) = 0
>stat("/sys/bus/usb/devices/usb1/descriptors", {st_mode=S_IFREG|0444, st_size=65553, ...}) = 0
>stat("/sys/bus/usb/devices/usb1/bConfigurationValue", {st_mode=S_IFREG|0644, st_size=4096, ...}) = 0
>close(3)                                = 0
>pipe([3, 4])                            = 0
>timerfd_create(CLOCK_MONOTONIC, 0x800 /* TFD_??? */) = 5
>access("/proc/bus/usb/devices", R_OK)   = -1 ENOENT (No such file or directory)
>openat(AT_FDCWD, "/sys/bus/usb/devices", O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC) = 6
>getdents(6, /* 31 entries */, 32768)    = 880
>open("/sys/bus/usb/devices/usb1/devnum", O_RDONLY) = 7
>read(7, "1\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb1/bDeviceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb1/maxchild", O_RDONLY) = 7
>read(7, "5\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb1/speed", O_RDONLY) = 7
>read(7, "480\n", 255)                   = 4
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/usb1/../driver", "../../../bus/pci/drivers/ehci_hcd"..., 4096) = 33
>open("/sys/bus/usb/devices/1-0:1.0/bAlternateSetting", O_RDONLY) = 7
>read(7, " 0\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-0:1.0/bInterfaceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-0:1.0/bInterfaceNumber", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-0:1.0/bInterfaceProtocol", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-0:1.0/bInterfaceSubClass", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-0:1.0/bNumEndpoints", O_RDONLY) = 7
>read(7, "01\n", 11)                     = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/1-0:1.0/driver", "../../../../../bus/usb/drivers/hub"..., 4096) = 34
>open("/sys/bus/usb/devices/usb2/devnum", O_RDONLY) = 7
>read(7, "1\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb2/bDeviceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb2/maxchild", O_RDONLY) = 7
>read(7, "5\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb2/speed", O_RDONLY) = 7
>read(7, "480\n", 255)                   = 4
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/usb2/../driver", "../../../bus/pci/drivers/ehci_hcd"..., 4096) = 33
>open("/sys/bus/usb/devices/2-0:1.0/bAlternateSetting", O_RDONLY) = 7
>read(7, " 0\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/2-0:1.0/bInterfaceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/2-0:1.0/bInterfaceNumber", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/2-0:1.0/bInterfaceProtocol", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/2-0:1.0/bInterfaceSubClass", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/2-0:1.0/bNumEndpoints", O_RDONLY) = 7
>read(7, "01\n", 11)                     = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/2-0:1.0/driver", "../../../../../bus/usb/drivers/hub"..., 4096) = 34
>open("/sys/bus/usb/devices/usb3/devnum", O_RDONLY) = 7
>read(7, "1\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb3/bDeviceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb3/maxchild", O_RDONLY) = 7
>read(7, "4\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb3/speed", O_RDONLY) = 7
>read(7, "480\n", 255)                   = 4
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/usb3/../driver", "../../../bus/pci/drivers/ehci_hcd"..., 4096) = 33
>open("/sys/bus/usb/devices/3-0:1.0/bAlternateSetting", O_RDONLY) = 7
>read(7, " 0\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/3-0:1.0/bInterfaceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/3-0:1.0/bInterfaceNumber", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/3-0:1.0/bInterfaceProtocol", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/3-0:1.0/bInterfaceSubClass", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/3-0:1.0/bNumEndpoints", O_RDONLY) = 7
>read(7, "01\n", 11)                     = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/3-0:1.0/driver", "../../../../../bus/usb/drivers/hub"..., 4096) = 34
>open("/sys/bus/usb/devices/usb4/devnum", O_RDONLY) = 7
>read(7, "1\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb4/bDeviceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb4/maxchild", O_RDONLY) = 7
>read(7, "5\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb4/speed", O_RDONLY) = 7
>read(7, "12\n", 255)                    = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/usb4/../driver", "../../../bus/pci/drivers/ohci_hcd"..., 4096) = 33
>open("/sys/bus/usb/devices/4-0:1.0/bAlternateSetting", O_RDONLY) = 7
>read(7, " 0\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/4-0:1.0/bInterfaceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/4-0:1.0/bInterfaceNumber", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/4-0:1.0/bInterfaceProtocol", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/4-0:1.0/bInterfaceSubClass", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/4-0:1.0/bNumEndpoints", O_RDONLY) = 7
>read(7, "01\n", 11)                     = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/4-0:1.0/driver", "../../../../../bus/usb/drivers/hub"..., 4096) = 34
>open("/sys/bus/usb/devices/usb5/devnum", O_RDONLY) = 7
>read(7, "1\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb5/bDeviceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb5/maxchild", O_RDONLY) = 7
>read(7, "5\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb5/speed", O_RDONLY) = 7
>read(7, "12\n", 255)                    = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/usb5/../driver", "../../../bus/pci/drivers/ohci_hcd"..., 4096) = 33
>open("/sys/bus/usb/devices/5-0:1.0/bAlternateSetting", O_RDONLY) = 7
>read(7, " 0\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-0:1.0/bInterfaceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-0:1.0/bInterfaceNumber", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-0:1.0/bInterfaceProtocol", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-0:1.0/bInterfaceSubClass", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-0:1.0/bNumEndpoints", O_RDONLY) = 7
>read(7, "01\n", 11)                     = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/5-0:1.0/driver", "../../../../../bus/usb/drivers/hub"..., 4096) = 34
>open("/sys/bus/usb/devices/usb6/devnum", O_RDONLY) = 7
>read(7, "1\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb6/bDeviceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb6/maxchild", O_RDONLY) = 7
>read(7, "2\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb6/speed", O_RDONLY) = 7
>read(7, "12\n", 255)                    = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/usb6/../driver", "../../../bus/pci/drivers/ohci_hcd"..., 4096) = 33
>open("/sys/bus/usb/devices/6-0:1.0/bAlternateSetting", O_RDONLY) = 7
>read(7, " 0\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/6-0:1.0/bInterfaceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/6-0:1.0/bInterfaceNumber", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/6-0:1.0/bInterfaceProtocol", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/6-0:1.0/bInterfaceSubClass", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/6-0:1.0/bNumEndpoints", O_RDONLY) = 7
>read(7, "01\n", 11)                     = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/6-0:1.0/driver", "../../../../../bus/usb/drivers/hub"..., 4096) = 34
>open("/sys/bus/usb/devices/usb7/devnum", O_RDONLY) = 7
>read(7, "1\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb7/bDeviceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb7/maxchild", O_RDONLY) = 7
>read(7, "4\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb7/speed", O_RDONLY) = 7
>read(7, "12\n", 255)                    = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/usb7/../driver", "../../../bus/pci/drivers/ohci_hcd"..., 4096) = 33
>open("/sys/bus/usb/devices/7-0:1.0/bAlternateSetting", O_RDONLY) = 7
>read(7, " 0\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/7-0:1.0/bInterfaceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/7-0:1.0/bInterfaceNumber", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/7-0:1.0/bInterfaceProtocol", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/7-0:1.0/bInterfaceSubClass", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/7-0:1.0/bNumEndpoints", O_RDONLY) = 7
>read(7, "01\n", 11)                     = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/7-0:1.0/driver", "../../../../../bus/usb/drivers/hub"..., 4096) = 34
>open("/sys/bus/usb/devices/usb8/devnum", O_RDONLY) = 7
>read(7, "1\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb8/bDeviceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb8/maxchild", O_RDONLY) = 7
>read(7, "2\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb8/speed", O_RDONLY) = 7
>read(7, "480\n", 255)                   = 4
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/usb8/../driver", "../../../../bus/pci/drivers/xhci_hcd"..., 4096) = 36
>open("/sys/bus/usb/devices/8-0:1.0/bAlternateSetting", O_RDONLY) = 7
>read(7, " 0\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/8-0:1.0/bInterfaceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/8-0:1.0/bInterfaceNumber", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/8-0:1.0/bInterfaceProtocol", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/8-0:1.0/bInterfaceSubClass", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/8-0:1.0/bNumEndpoints", O_RDONLY) = 7
>read(7, "01\n", 11)                     = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/8-0:1.0/driver", "../../../../../../bus/usb/drivers/hub"..., 4096) = 37
>open("/sys/bus/usb/devices/usb9/devnum", O_RDONLY) = 7
>read(7, "1\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb9/bDeviceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb9/maxchild", O_RDONLY) = 7
>read(7, "2\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb9/speed", O_RDONLY) = 7
>read(7, "5000\n", 255)                  = 5
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/usb9/../driver", "../../../../bus/pci/drivers/xhci_hcd"..., 4096) = 36
>open("/sys/bus/usb/devices/9-0:1.0/bAlternateSetting", O_RDONLY) = 7
>read(7, " 0\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/9-0:1.0/bInterfaceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/9-0:1.0/bInterfaceNumber", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/9-0:1.0/bInterfaceProtocol", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/9-0:1.0/bInterfaceSubClass", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/9-0:1.0/bNumEndpoints", O_RDONLY) = 7
>read(7, "01\n", 11)                     = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/9-0:1.0/driver", "../../../../../../bus/usb/drivers/hub"..., 4096) = 37
>open("/sys/bus/usb/devices/usb10/devnum", O_RDONLY) = 7
>read(7, "1\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb10/bDeviceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb10/maxchild", O_RDONLY) = 7
>read(7, "2\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb10/speed", O_RDONLY) = 7
>read(7, "480\n", 255)                   = 4
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/usb10/../driver", "../../../../bus/pci/drivers/xhci_hcd", 4096) = 36
>open("/sys/bus/usb/devices/10-0:1.0/bAlternateSetting", O_RDONLY) = 7
>read(7, " 0\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/10-0:1.0/bInterfaceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/10-0:1.0/bInterfaceNumber", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/10-0:1.0/bInterfaceProtocol", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/10-0:1.0/bInterfaceSubClass", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/10-0:1.0/bNumEndpoints", O_RDONLY) = 7
>read(7, "01\n", 11)                     = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/10-0:1.0/driver", "../../../../../../bus/usb/drivers/hub"..., 4096) = 37
>open("/sys/bus/usb/devices/usb11/devnum", O_RDONLY) = 7
>read(7, "1\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb11/bDeviceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb11/maxchild", O_RDONLY) = 7
>read(7, "2\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/usb11/speed", O_RDONLY) = 7
>read(7, "5000\n", 255)                  = 5
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/usb11/../driver", "../../../../bus/pci/drivers/xhci_hcd", 4096) = 36
>open("/sys/bus/usb/devices/11-0:1.0/bAlternateSetting", O_RDONLY) = 7
>read(7, " 0\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/11-0:1.0/bInterfaceClass", O_RDONLY) = 7
>read(7, "09\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/11-0:1.0/bInterfaceNumber", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/11-0:1.0/bInterfaceProtocol", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/11-0:1.0/bInterfaceSubClass", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/11-0:1.0/bNumEndpoints", O_RDONLY) = 7
>read(7, "01\n", 11)                     = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/11-0:1.0/driver", "../../../../../../bus/usb/drivers/hub"..., 4096) = 37
>open("/sys/bus/usb/devices/1-2/bConfigurationValue", O_RDONLY) = 7
>read(7, "1\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2/bDeviceClass", O_RDONLY) = 7
>read(7, "ff\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2/bDeviceProtocol", O_RDONLY) = 7
>read(7, "ff\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2/bDeviceSubClass", O_RDONLY) = 7
>read(7, "ff\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2/bMaxPacketSize0", O_RDONLY) = 7
>read(7, "64\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2/bMaxPower", O_RDONLY) = 7
>read(7, "500mA\n", 255)                 = 6
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2/bNumConfigurations", O_RDONLY) = 7
>read(7, "1\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2/bNumInterfaces", O_RDONLY) = 7
>read(7, " 1\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2/bcdDevice", O_RDONLY) = 7
>read(7, "0603\n", 11)                   = 5
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2/bmAttributes", O_RDONLY) = 7
>read(7, "a0\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2/configuration", O_RDONLY) = 7
>read(7, "", 11)                         = 0
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2/devnum", O_RDONLY) = 7
>read(7, "2\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2/idProduct", O_RDONLY) = 7
>read(7, "1905\n", 11)                   = 5
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2/idVendor", O_RDONLY) = 7
>read(7, "04a9\n", 11)                   = 5
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2/maxchild", O_RDONLY) = 7
>read(7, "0\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2/manufacturer", O_RDONLY) = 7
>read(7, "Canon\n", 255)                 = 6
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2/product", O_RDONLY) = 7
>read(7, "CanoScan\n", 255)              = 9
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2/serial", O_RDONLY) = -1 ENOENT (No such file or directory)
>open("/sys/bus/usb/devices/1-2/version", O_RDONLY) = 7
>read(7, " 2.00\n", 255)                 = 6
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2/speed", O_RDONLY) = 7
>read(7, "480\n", 255)                   = 4
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/1-2/driver", "../../../../../bus/usb/drivers/usb"..., 4096) = 34
>open("/sys/bus/usb/devices/1-2:1.0/bAlternateSetting", O_RDONLY) = 7
>read(7, " 0\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2:1.0/bInterfaceClass", O_RDONLY) = 7
>read(7, "ff\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2:1.0/bInterfaceNumber", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2:1.0/bInterfaceProtocol", O_RDONLY) = 7
>read(7, "ff\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2:1.0/bInterfaceSubClass", O_RDONLY) = 7
>read(7, "ff\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/1-2:1.0/bNumEndpoints", O_RDONLY) = 7
>read(7, "03\n", 11)                     = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/1-2:1.0/driver", 0x7ffff6de2e40, 4096) = -1 ENOENT (No such file or directory)
>open("/sys/bus/usb/devices/5-4/bConfigurationValue", O_RDONLY) = 7
>read(7, "1\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4/bDeviceClass", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4/bDeviceProtocol", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4/bDeviceSubClass", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4/bMaxPacketSize0", O_RDONLY) = 7
>read(7, "8\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4/bMaxPower", O_RDONLY) = 7
>read(7, "100mA\n", 255)                 = 6
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4/bNumConfigurations", O_RDONLY) = 7
>read(7, "1\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4/bNumInterfaces", O_RDONLY) = 7
>read(7, " 2\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4/bcdDevice", O_RDONLY) = 7
>read(7, "0110\n", 11)                   = 5
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4/bmAttributes", O_RDONLY) = 7
>read(7, "a0\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4/configuration", O_RDONLY) = 7
>read(7, "", 11)                         = 0
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4/devnum", O_RDONLY) = 7
>read(7, "2\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4/idProduct", O_RDONLY) = 7
>read(7, "0101\n", 11)                   = 5
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4/idVendor", O_RDONLY) = 7
>read(7, "0a81\n", 11)                   = 5
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4/maxchild", O_RDONLY) = 7
>read(7, "0\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4/manufacturer", O_RDONLY) = 7
>read(7, "CHESEN\n", 255)                = 7
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4/product", O_RDONLY) = 7
>read(7, "USB Keyboard\n", 255)          = 13
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4/serial", O_RDONLY) = -1 ENOENT (No such file or directory)
>open("/sys/bus/usb/devices/5-4/version", O_RDONLY) = 7
>read(7, " 1.10\n", 255)                 = 6
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4/speed", O_RDONLY) = 7
>read(7, "1.5\n", 255)                   = 4
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/5-4/driver", "../../../../../bus/usb/drivers/usb"..., 4096) = 34
>open("/sys/bus/usb/devices/5-4:1.0/bAlternateSetting", O_RDONLY) = 7
>read(7, " 0\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4:1.0/bInterfaceClass", O_RDONLY) = 7
>read(7, "03\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4:1.0/bInterfaceNumber", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4:1.0/bInterfaceProtocol", O_RDONLY) = 7
>read(7, "01\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4:1.0/bInterfaceSubClass", O_RDONLY) = 7
>read(7, "01\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4:1.0/bNumEndpoints", O_RDONLY) = 7
>read(7, "01\n", 11)                     = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/5-4:1.0/driver", "../../../../../../bus/usb/drivers/usbhid"..., 4096) = 40
>open("/sys/bus/usb/devices/5-4:1.1/bAlternateSetting", O_RDONLY) = 7
>read(7, " 0\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4:1.1/bInterfaceClass", O_RDONLY) = 7
>read(7, "03\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4:1.1/bInterfaceNumber", O_RDONLY) = 7
>read(7, "01\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4:1.1/bInterfaceProtocol", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4:1.1/bInterfaceSubClass", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-4:1.1/bNumEndpoints", O_RDONLY) = 7
>read(7, "01\n", 11)                     = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/5-4:1.1/driver", "../../../../../../bus/usb/drivers/usbhid", 4096) = 40
>open("/sys/bus/usb/devices/5-5/bConfigurationValue", O_RDONLY) = 7
>read(7, "1\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5/bDeviceClass", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5/bDeviceProtocol", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5/bDeviceSubClass", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5/bMaxPacketSize0", O_RDONLY) = 7
>read(7, "8\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5/bMaxPower", O_RDONLY) = 7
>read(7, "100mA\n", 255)                 = 6
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5/bNumConfigurations", O_RDONLY) = 7
>read(7, "1\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5/bNumInterfaces", O_RDONLY) = 7
>read(7, " 1\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5/bcdDevice", O_RDONLY) = 7
>read(7, "0100\n", 11)                   = 5
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5/bmAttributes", O_RDONLY) = 7
>read(7, "a0\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5/configuration", O_RDONLY) = 7
>read(7, "HID-complia", 11)              = 11
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5/devnum", O_RDONLY) = 7
>read(7, "3\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5/idProduct", O_RDONLY) = 7
>read(7, "003a\n", 11)                   = 5
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5/idVendor", O_RDONLY) = 7
>read(7, "0458\n", 11)                   = 5
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5/maxchild", O_RDONLY) = 7
>read(7, "0\n", 11)                      = 2
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5/manufacturer", O_RDONLY) = 7
>read(7, "Genius\n", 255)                = 7
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5/product", O_RDONLY) = 7
>read(7, "Optical Mouse\n", 255)         = 14
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5/serial", O_RDONLY) = -1 ENOENT (No such file or directory)
>open("/sys/bus/usb/devices/5-5/version", O_RDONLY) = 7
>read(7, " 1.10\n", 255)                 = 6
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5/speed", O_RDONLY) = 7
>read(7, "1.5\n", 255)                   = 4
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/5-5/driver", "../../../../../bus/usb/drivers/usb"..., 4096) = 34
>open("/sys/bus/usb/devices/5-5:1.0/bAlternateSetting", O_RDONLY) = 7
>read(7, " 0\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5:1.0/bInterfaceClass", O_RDONLY) = 7
>read(7, "03\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5:1.0/bInterfaceNumber", O_RDONLY) = 7
>read(7, "00\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5:1.0/bInterfaceProtocol", O_RDONLY) = 7
>read(7, "02\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5:1.0/bInterfaceSubClass", O_RDONLY) = 7
>read(7, "01\n", 11)                     = 3
>close(7)                                = 0
>open("/sys/bus/usb/devices/5-5:1.0/bNumEndpoints", O_RDONLY) = 7
>read(7, "01\n", 11)                     = 3
>close(7)                                = 0
>readlink("/sys/bus/usb/devices/5-5:1.0/driver", "../../../../../../bus/usb/drivers/usbhid", 4096) = 40
>getdents(6, /* 0 entries */, 32768)     = 0
>close(6)                                = 0
>fstat(1, {st_mode=S_IFCHR|0600, st_rdev=makedev(136, 2), ...}) = 0
>mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fd37318a000
>write(1, "/:  Bus 11.Port 1: Dev 1, Class="..., 68/:  Bus 11.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M
>) = 68
>write(1, "/:  Bus 10.Port 1: Dev 1, Class="..., 67/:  Bus 10.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 480M
>) = 67
>write(1, "/:  Bus 09.Port 1: Dev 1, Class="..., 68/:  Bus 09.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 5000M
>) = 68
>write(1, "/:  Bus 08.Port 1: Dev 1, Class="..., 67/:  Bus 08.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/2p, 480M
>) = 67
>write(1, "/:  Bus 07.Port 1: Dev 1, Class="..., 66/:  Bus 07.Port 1: Dev 1, Class=root_hub, Driver=ohci_hcd/4p, 12M
>) = 66
>write(1, "/:  Bus 06.Port 1: Dev 1, Class="..., 66/:  Bus 06.Port 1: Dev 1, Class=root_hub, Driver=ohci_hcd/2p, 12M
>) = 66
>write(1, "/:  Bus 05.Port 1: Dev 1, Class="..., 66/:  Bus 05.Port 1: Dev 1, Class=root_hub, Driver=ohci_hcd/5p, 12M
>) = 66
>write(1, "    |__ Port 4: Dev 2, If 0, Cla"..., 60    |__ Port 4: Dev 2, If 0, Class=HID, Driver=usbhid, 1.5M
>) = 60
>write(1, "    |__ Port 4: Dev 2, If 1, Cla"..., 60    |__ Port 4: Dev 2, If 1, Class=HID, Driver=usbhid, 1.5M
>) = 60
>write(1, "    |__ Port 5: Dev 3, If 0, Cla"..., 60    |__ Port 5: Dev 3, If 0, Class=HID, Driver=usbhid, 1.5M
>) = 60
>write(1, "/:  Bus 04.Port 1: Dev 1, Class="..., 66/:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=ohci_hcd/5p, 12M
>) = 66
>write(1, "/:  Bus 03.Port 1: Dev 1, Class="..., 67/:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=ehci_hcd/4p, 480M
>) = 67
>write(1, "/:  Bus 02.Port 1: Dev 1, Class="..., 67/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci_hcd/5p, 480M
>) = 67
>write(1, "/:  Bus 01.Port 1: Dev 1, Class="..., 67/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci_hcd/5p, 480M
>) = 67
>write(1, "    |__ Port 2: Dev 2, If 0, Cla"..., 56    |__ Port 2: Dev 2, If 0, Class=vend., Driver=, 480M
>) = 56
>close(3)                                = 0
>close(4)                                = 0
>close(5)                                = 0
>exit_group(0)                           = ?
>

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Attachments on bug 808934: 574815 | 574996 | 574997