[Buildroot] mdev & usb problem

Michael S. Zick minimod at morethan.org
Tue Jan 5 12:43:32 UTC 2010


On Tue January 5 2010, Julien Boibessot wrote:
> peter.stosz at mentat.hu a écrit :
> > /opt # find / -name usb.ids*
> > /usr/share/usb.ids.gz
> and what gives "strace lsusb" on your board ??
> > /opt #
> > /opt # strace ./us
> > ......
> > ioctl(0, SNDCTL_TMR_TIMEBASE or TCGETS, {B115200 opost isig icanon
> > echo ...}) = 0
> > ioctl(1, SNDCTL_TMR_TIMEBASE or TCGETS, {B115200 opost isig icanon
> > echo ...}) = 0
> > open("/dev/bus/usb", O_RDONLY|O_NONBLOCK|O_DIRECTORY) = -1 ENOENT (No
> > such file or directory)
> seems to be the problem (compare it with "strace us" on your PC)
> Do you have a directory named /dev/bus/usb/ ??
> 

Translation:
You have to mount usbFS at /dev/bus/usb
"Your PC" may be auto-mounting it, which isn't much guidance.

Mike
> Julien
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