On Sun, 12 Mar 2006 23:21:11 +0100, Jan Rychter <[EMAIL PROTECTED]> wrote:
> I've tried the latter -- these problems occur both with and without > ehci_hcd. Right, I wasn't paying attention, sorry. You mentioned this in your initial message. This probably means that we can discount HCDs. > Should I try with a USB 1.1 hub? You can, but I do not expect it to change anything versus rmmod ehci_hcd. Did you try to shut down cups, run foo2zjs by hand and store the result, then do cat <foo.prn >/dev/usb/lp? My pet theory is that the printer needs delays. The ZJS protocol is designed in terms of a byte stream, so it should not be an issue. Nonetheless... If cat (above) fails, the next step is to add fflush() and sleep() into foo2zjs. The thing is, from what Rick said, only "some" users experience the flakiness. I do not have a complete picture, so I do not see a correlation. It may be something like a particular brand of USB HCs causes this (say, VIA). -- Pete ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
