Messages in this thread | | | Date | Tue, 7 Mar 2006 18:02:12 +0100 | From | wixor <> | Subject | Re: using usblp with ppdev? |
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> > But if you want to play around and verify this, try modifying the USB > device table in the drivers/usb/misc/uss720.c file (look for the > structure called "uss720_table" and add a new entry with the vendor and > product id of your device there.) > Well, it seems the device doesn't like the driver or vice-verse. When added entry to the uss720_table, /proc/bus/usb/devices reports that the device is being handled by this driver, but when I plug the device in, dmesg gets full of error reports, and the device file doesn't appear in /dev . Now, my question is: is the cable named "usb to parallel cable" an interface that converts classic printer to usb printer? Shouldn't it be rather a real usb to parallel cable? Is it some kind of protocol limitation that the device is unable to perform per-pin i/o tasks or maybe the protocol isn't simply fully implemented by the device? Or maybe I should use some another protocol (and driver) to use advanced (?) functions? The uss720 driver complains about usb error -32 (like: get_1284_register: usb error -32 [but: async_complete: urb error -32 - shouldn't it be USB error? a typo?])
thanks for help
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