Comment 3 for bug 1156210
Revision history for this message
| Till Kamppeter (till-kamppeter) wrote Re: usb->parallel_printer status failure | #3 |
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0e1f616
(Get the code!)
Another user has run into problems with this adapter, too, but he used it only through the USB backend which is part of CUPS. See bug 1000253, comment #93 and following comments. It is there identified as the QinHeng CH340S. We have applied a workaround (available from Raring/13.04 on) in the CUPS backend to make the adapter work with CUPS.
The problem you are reporting is not a CUPS bug, as by directly talking to /dev/usb/lp0 from a C program you do not use CUPS. /dev/usb/lp0 is provided by the "usblp" kernel module (which is not used by CUPS). A workaround for the bug in your hardware which helps in your situation can therefore only be applied in the kernel. Therefore I move this bug to the kernel ("linux" source package).