On Tue, 5 Apr 2011, David Newall wrote: > I'm getting the above error on a recent installation, when printing to a > USB connected printer, and only the first half of the page is printed. > Searching Google, I found that this is surprisingly common (I was > surprised), both using usb parallel converters as well as usb-connected > printers, and the only suggestion seems to be to change CUPS's device > URI to parallel:/dev/usb/lpN - it's currently > usb://OKI%20MICROLINE%20something. (Even though it seems somewhat > bizarre, I am trying the suggestion, but haven't heard the results yet.) > > From UTSLing I see that error 62 is ETIME, but finding the timer > involved requires getting arms-deep into the USB code. It isn't a software timer; it is a hardware requirement. ETIME means the printer failed to acknowledge to a packet sent by the computer within the required 3-microsecond limit (or whatever the actual value is -- something like that). > I found no > discussion on this, and wonder if I just missed it, or if there really > is some issue that worth looking at. Something about extended output > and ETIME makes me think it is worth looking at. > > I'd appreciate pointers, either to discussions and solutions that I > missed, or to places in the code where I might start looking. You could capture a usbmon trace. See the instructions in the kernel source file Documentation/usb/usbmon.txt. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
