Date: Thu, 03 Jan 2008 18:35:24 +0300 From: Ivan <trtrgav@mail.ru> To: freebsd-usb@freebsd.org Subject: trying to catch the bug in usb-support Message-ID: <E1JAS6O-000EJp-00.trtrgav-mail-ru@f142.mail.ru>
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Dear friends, since a couple of days I'm trying to fix some issues concerning the broken support of some usb-devices. I have started with HP ScanJet 4300C usb-scanner. The problem seems to be rather old (you can look at: http://lists.freebsd.org/mailman/htdig/freebsd-usb/2005-August/001377.html http://lists.freebsd.org/mailman/htdig/freebsd-usb/2005-August/001399.html http://www.freebsd.org/cgi/query-pr.cgi?pr=119018 ) I have tried to attach the scanner on 4.11-STABLE, 7.0-PRERELEASE and now on 8.0-CURRENT. Everywhere the same problem. I have added some debug-output to the uscanner.c and found out, that uaa->iface in uscanner_match() is set to NULL. As I tried to attach the device as ugen, I saw: uhub1: port1, set config at addr 2 failed, error=STALLED I have also tried to set the iface-value explicitly in usb_subr.c by adding: usbd_device2interface_handle(dev,0,&uaa.iface) but also without success. device_get_ivars() seems to be broken. But what can I do about that? Or what else could be wrong? I hope someone of you have more experience with that stuff to help me out. Best regards, Ivan
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