Re: Reformulation of criticisms about console-setup switch (was: Re: Review of console-setup wrt D-I [very long])
On Monday 29 June 2009, Frans Pop wrote:
> On Monday 29 June 2009, Anton Zinoviev wrote:
> > 2. Can console-setup-udeb expect that /proc/bus/usb is mounted? Is
> > there some dependency about this?
>
> For 2.6.29 and 2.6.30 you can't depend on it being mounted. See
> usb-kbd.c in kbd-chooser; again the code is fairly simple (I hacked on
> it ages ago so it must be as I knew even less C then than I know now).
>
> But note that /proc/bus/usb (or rather usbfs) is going away in 2.6.31!
> See #534412, it's very relevant.
If you do want to use USB information, then the best solution is to take
it directly from sysfs (better than mounting debugfs). Almost all
information in /proc/bus/usb/devices can also be found in sysfs.
See the usb-list script I recently added for installation-report for
example code how to walk through sysfs correctly.
Reply to: