Yes, I am using --enable-hpijs-only-build, but also printer status and bi-di comm are used by default by HPIJS for this printer. Then, I link all of the HPIJS object files into a static library and then with my app. BTW, I link libusb also for other devices that the application uses (i.e. USB drives).
For HPIJS, I first call usb_find_busses, ubs_find_devices, usb_open, usb_claim_interface, usb_set_altinterface, and after done, I call usb_release_interface, usb_close. Are you saying I do not need to do all that? The SYSTEM_ERROR is returned by constructor of Job class and is defined in APDK documentation. I think you maybe thinking about HPIJS server which I do not use. I use hplip-2.7.7/prnt/hpijs code by itself. I guess it is possible that I call usb_close while the buffered data is still being transmitted. I would expect usblib to take care of this and hpijs to work properly with it. I thought that when SendRasters returns, it is OK call NewPage() and to close usb. Martin -----Original Message----- From: Suffield, David [mailto:[EMAIL PROTECTED] Sent: Wednesday, August 29, 2007 11:28 AM To: Martin Kajdas; hplip-devel@lists.sourceforge.net Subject: RE: [HPLIP-Devel] Print errors and hangs using HPIJS with HP DJ4160 > I also link it with libusb 0.1.12 and other things. If you are using hpijs only, no printer status or bi-di communication. Then with configure option --enable-hpijs-only-build, you shouldn't need libusb. > - sometimes (never the first time after power up) the Job is created > but the construction_error = SYSTEM_ERROR. It seems that the printer > is not responding and HPIJS times out. > Retrying works and printing can continue. Not sure what this error is. If you use hpijs-only-build, then you shouldn't get this error. > - sometimes HPIJS hangs on what seems like the last pass > (bottom) of the raster. Sometimes it does not hang and > NewPage() ejects the page but the bottom of the raster is incomplete > (unfinished part of a line) This error sounds like you are closing usb io down before all the data has be received by the printer. -dave ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ HPLIP-Devel mailing list HPLIP-Devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/hplip-devel
