On Wed, Oct 31, 2012 at 9:29 AM, Xiaofan Chen <xiaof...@gmail.com> wrote:
> On Wed, Oct 31, 2012 at 2:25 AM, David Grant <davidgr...@gmail.com> wrote:
>> Could someone with write access to the libusbx wiki add this to the
>> "Can I run Linux libusbx applications without root privilege?"
>> section?
>>
>> Example udev rules file, call it "10-libusb.rules"
>> SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", GROUP="libusbusers",
>> MODE="0664"
>>
>
> I am reluctant to add anything like the above even though
> it is quite popular (usually people use plugdev group or
> things like that).
>
> Just take a look at the default udev rules
> whch is /lib/udev/rules.d/50-udev-default.rules, there is
> already provision for libusb device.
>
> # 'libusb' device nodes
> SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", MODE="0664"
> SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", IMPORT{builtin}="usb_id"
>
> It seems to me that udev developers thought about the group based
> method and decided against it.
>
Of course the problem is that the default rule does not work
well due to the use of MODE="0664". Maybe it is a good idea
to ask in linux-hotplug mailing list to see the recommendation
from udev developers.
--
Xiaofan
------------------------------------------------------------------------------
Everyone hates slow websites. So do we.
Make your web apps faster with AppDynamics
Download AppDynamics Lite for free today:
http://p.sf.net/sfu/appdyn_sfd2d_oct
_______________________________________________
libusbx-devel mailing list
libusbx-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/libusbx-devel
