On Tue, 24 Jan 2012, Stojsavljevic, Zoran wrote: > Hello Alan, > > Sorry for my ignorance. I am just trying to test USB driver, and I am very new to this domain. > > I am now reading more about device (data sheet) itself. To try to understand more. > > I see your points. Let me dive more deep, so I can try to understand device driver's code. It > supposed to have both bulk-IN and bulk-OUT. Something is very wrong, it is obvious. You can see the endpoints listed in /proc/bus/usb/devices (the lines beginning with "E:"). In the listing you posted earlier for g_printer, there is a bulk-IN endpoint but no bulk-OUT. 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
