Hello everyone:
I have some problem in developing usb scanner.who can help me?
when call usb_submit_urb() in probe_scanner() (scanner.c of kernel
2.4.19), return is ENOMEM. why and how to resolve that? My scanner has
three endpoints (1 is bulk in, 2 is bulk out, 3 is bulk interrupt).
Then I marked usb_submit_urb, scanner is probed, and ioctl system call
can be called. But when write_scanner, usb_bulk_msg return ENOMEM too. Why
and how to??
Thanks a lot
Dan
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