On Wed, 3 Feb 2010, Martin Poupe wrote:
> Hello.
> I would like to something like:
> int fd = open("/sys/bus/usb/devices/5-1/<something>", O_RDWR);
> and then use fd for ioctl() calls (submit urbs, etc.)
> I was able to do the same on usbfs:
> int fd = open("/proc/bus/usb/005/007", O_RDWR);
>
> Now I need to access the USB via sysfs, because not all Linux platforms
> have usbfs available. I cannot open("/sys/bus/usb/devices/5-1", O_RDWR)
> because this is a directory :-( What file in this directory (or
> elsewhere) should be opened for ioctl() ?
The device files corresponding to usbfs are now located under
/dev/bus/usb. For example: /dev/bus/usb/005/007.
Alan Stern
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