Rene:
The log that you sent me cgb1x1.log was very nearly worthless.
The log showed 2644 URBS out, 639 of those were URB_FUNCTION_RESET_PIPE
ending with 3 URB_FUNCTION_ABORT_PIPE out, and 3 back.
That is about 1 in 4 urbs were resets.
Use only a scanner log that ends in a successful scan, best is
Quoting Ren? Kjellerup :
> I've found out that the communication to the CanoScan 4200F scanner
> most likely happens through control messages. And I've tried to set up
The scanner is a USB-2.0 device. In the genesys backend, Lide35 scanner made
extensive use of bulk urbs, with much less done in
I've found out that the communication to the CanoScan 4200F scanner
most likely happens through control messages. And I've tried to set up
my program to emulate this, but with my limited knowledge of how USB
communication works.
I'd like to how to set up a control msg. But what are requestType /
