Please don't use linux-usb-users-admin in the Cc:, it doesn't help :) On Tue, Dec 18, 2001 at 03:36:55PM -0600, Richard Johnston wrote: > > I tried a newer kernel (2.4.16) same results. I found a printer which > could be placed in hex dump mode. Only E0 or 00 are printed to the > printer. The driver debug messages looked like they were correct hex > values for the file I was trying to print. Its almost like the data is > manipulated just before it is sent out to the printer. I don't think > it is Belkin specific. As near as I could tell any driver which uses > the generic serial read/write routines would see this problem. I tried > another device (Not Belkin) it behaved the same as the Belkin just E0 > or 00. > > Any Ideas?
There isn't any data manipulation functions in the usb-serial driver functions. If you turn on debugging for the driver (load it with "debug=1") does it show that the proper data is being sent to the device? I'd be interested in seeing the debug logs for where things go wrong. What baud rates / control settings are you trying? What kind of userspace program are you using to transfer the file? I've heard people say that lpr can't handle "short" writes, which the usb-serial drivers do. If this proves true, a patch for lpr might be a good :) thanks, greg k-h _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
