Bug 1438969 - Dell xps13 Broadcom bluetooth Firmware Issue
Summary: Dell xps13 Broadcom bluetooth Firmware Issue
Status: CLOSED CANTFIX
Alias: None
Product: Fedora
Classification: Fedora
Component: kernel
Version: rawhide
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: ---
Assignee: Charles Rose (RH)
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Keywords:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-04-04 23:05 UTC by Prarit Bhargava
Modified: 2017-04-07 11:46 UTC (History)
12 users (show)

(edit)
Clone Of:
(edit)
Last Closed: 2017-04-05 19:56:58 UTC


Attachments (Terms of Use)

Description Prarit Bhargava 2017-04-04 23:05:34 UTC
Description of problem: When the Broadcom device on the xps13 initializes, the following error is seen.

[    4.239455] Bluetooth: hci0: BCM: chip id 110
[    4.256722] Bluetooth: hci0: BCM4350C5
[    4.259629] Bluetooth: hci0: BCM (003.006.007) build 0000
[    4.262558] bluetooth hci0: Direct firmware load for brcm/BCM-0a5c-6412.hcd failed with error -2
[    4.262560] Bluetooth: hci0: BCM: Patch brcm/BCM-0a5c-6412.hcd not found

This occurs because Dell& Broadcom has not provided an BCM-0a5c-6412.hcd firmware for the xps13.  If this firmware were provided it could be included either in the linux-firmware package or in its own package.

I did note that a Windows .exe was available from http://downloads.dell.com/FOLDER03272920M/1/9350_Network_Driver_XMJK7_WN32_12.0.1.720_A00.EXE, however, this .exe contains a restrictive license which states that I cannot distribute the firmware.

P.

Comment 1 Prarit Bhargava 2017-04-05 11:54:52 UTC
You can do:

# wget http://downloads.dell.com/FOLDER03272920/1/9350_Network_Driver_XMJK7_WN32_12.0.1.720_A00.EXE
# 7z e 9350_Network_Driver_XMJK7_WN32_12.0.1.720_A00.EXE Win32/BCM4350C5_003.006.007.0095.1703.hex
# hex2hcd BCM4350C5_003.006.007.0095.1703.hex
# mv -vf BCM4350C5_003.006.007.0095.1703.hcd /lib/firmware/brcm/BCM-0a5c-6412.hcd
# modprobe -r btusb; sleep 1; modprobe btusb

However, as stated above, I don't think we're allowed to distribute the firmware this way.

P.

Comment 2 Don Zickus 2017-04-05 14:57:10 UTC
I am thinking we re-assign this to Charles.  Dell is usually pretty good about
making sure the firmware vendors they work with, push the firmware publicly.

Thoughts?

Cheers,
Don

Comment 3 Prarit Bhargava 2017-04-05 18:54:22 UTC
(In reply to Don Zickus from comment #2)
> I am thinking we re-assign this to Charles.  Dell is usually pretty good
> about
> making sure the firmware vendors they work with, push the firmware publicly.
> 
> Thoughts?
> 
> Cheers,
> Don

Done.

P.

Comment 4 Charles Rose (RH) 2017-04-05 19:32:13 UTC
I will talk to Dell about this.

Looks like a licensing issue:

https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1599154

Comment 5 Charles Rose (RH) 2017-04-05 19:56:58 UTC
As noted by prarit, there are redistribution problems with the firmware that cannot be addressed as the vendor is out of that business.


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