Bug 1370893

Summary:	Cannot create lockfile for /dev/ttyUSB0 067b:2303
Product:	[Fedora] Fedora	Reporter:	Zamir SUN <sztsian>
Component:	systemd	Assignee:	systemd-maint
Status:	CLOSED EOL	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	24	CC:	extras-orphan, johannbg, jonathan, lnykryn, msekleta, muadda, ssahani, s, systemd-maint, zbyszek
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Last Closed:	2017-08-08 16:52:03 UTC	Type:	Bug
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Description Zamir SUN 2016-08-28 04:06:14 UTC

Description of problem:
Permission denied when accessing PL2303 serial using minicom.

Version-Release number of selected component (if applicable):
See additional information

How reproducible:
Always

Steps to Reproduce:
1.Plug in the PL2303 serial, find it's device name (here it is ttyUSB0)
2.minicom -d /dev/ttyUSB0
3.

Actual results:
2. $ minicom  -D /dev/ttyUSB0 
Cannot create lockfile for /dev/ttyUSB0: Permission denied

Expected results:
We should be able to use the serial, as we have systemd-hwdb in Fedora and the device is listed in http://www.linux-usb.org/usb.ids

Additional info:
It still did not work after I did the following.
$ sudo systemd-hwdb update
$ sudo udevadm control --reload-rules

Some package information
$ lsusb | grep 2303
Bus 003 Device 005: ID 067b:2303 Prolific Technology, Inc. PL2303 Serial Port
$ uname -r
4.6.7-300.fc24.x86_64
$ rpm -qi systemd-udev
Name        : systemd-udev
Version     : 229
Release     : 13.fc24
Architecture: x86_64

I tried to add a udev rule like the following and it still the same
ATTRS{idVendor}=="067b", ATTRS{idProduct}=="2303", TAG+="udev-acl", TAG+="uaccess"
But it works if I have a ugly rule like 
KERNEL=="ttyUSB[0-9]", MODE="0666"
or if the user is in the group dialout.

Comment 1 Zamir SUN 2016-08-28 04:11:39 UTC

Change component to systemd as I see udev is an orphaned component.

Comment 2 Fedora End Of Life 2017-07-25 22:42:03 UTC

This message is a reminder that Fedora 24 is nearing its end of life.
Approximately 2 (two) weeks from now Fedora will stop maintaining
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Comment 3 Fedora End Of Life 2017-08-08 16:52:03 UTC

Fedora 24 changed to end-of-life (EOL) status on 2017-08-08. Fedora 24 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

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