On Tue, 22 Nov 2005, Steve Bangert wrote: > I made two text files, one file had 8 one's in it and the other has 16 > one's in it, i sent those files to the printer device node one after the > other while recording a usbmon trace, the printer _didn't_ print a > single character, and nothing was printed to the system log, here's the > usbmon trace: > > ddb97300 1765765675 S Bi:003:02 -115 8192 < > ddb97800 1765766313 S Bo:003:01 -115 9 = 31313131 31313131 0a > ddb97300 1765767176 C Bi:003:02 0 0 > ddb97800 1765767181 C Bo:003:01 0 9 > > ddb97300 1787606680 S Bi:003:02 -115 8192 < > ddb97800 1787607293 S Bo:003:01 -115 17 = 31313131 31313131 31313131 > 31313131 0a > ddb97300 1787608643 C Bi:003:02 0 0 > ddb97800 1787608648 C Bo:003:01 0 17 >
Well, that's clear enough. It shows the two status reads returning 0 bytes and it shows the two file contents, each followed by a newline. There's nothing to signal the printer that it should eject a page. It's probably waiting for the computer to send more data. Alan Stern ------------------------------------------------------- This SF.Net email is sponsored by the JBoss Inc. Get Certified Today Register for a JBoss Training Course. Free Certification Exam for All Training Attendees Through End of 2005. For more info visit: http://ads.osdn.com/?ad_id=7628&alloc_id=16845&op=click _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
