Hi,
I'm having a problem trying to get my user mode application to ioctl my usb
driver. In the usb_driver structure I've set an ioctl function. I know my
driver loads and works, it is running the device just fine. For now, I
manually look at /proc/bus/usb/devices to find the bus and device number my
driver is at. Then I hardcode that into my app,
open("/proc/bus/usb/MMM/NNN", 0); and that SEEMS to work. I get a file
descriptor, but it is describing the usbdevfs entry, not my driver, if
that's OK. When I try an ioctl, I get a return value of -1 and my driver
does not get entered in its ioctl function.
What could I be missing? I don't set fops in usb_driver, is that a problem?
I really don't want to read or write from my app, and since the device is
also an ethernet driver it already fills out a net_device for open, read,
write, etc. I see there is also an ioctl in net_device but it's a different
declaration and I've found comments in network source to the effect that
this ioctl is not used anymore.
I appreciate your help,
Steve Urquhart
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