On Fri, 28 Jul 2006, Alejandro Riveira Fernández wrote: > > > Hi, > > > > > > I'm having problems with usb and lastest 2.6.18-rc kernels. lsusb does > > > not give any output although the usb harware seems to work properly. The > > > usb mouse and speedtouch modem do work but cups does not recognize my hp > > > printer. > > > > What does /proc/bus/usb/devices show? Note that you may need to mount > > /proc/bus/usb before you can see anything: > > > > mount -t usbfs usbfs /proc/bus/usb > > Yes, I did have to mount it manually... extrange becouse it did get > mounted automatically in prior kernels (2.6.17.2). > for the record i'm using ubuntu dapper. the output of the following > command is with an 2.6.18-rc2 kernel (debug_usb is not set) > > $ cat /proc/bus/usb/devices
> T: Bus=02 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 3 Spd=12 MxCh= 0 > D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 > P: Vendor=03f0 ProdID=1904 Rev= 1.00 > S: Manufacturer=Hewlett-Packard > S: Product=DeskJet 3820 > S: SerialNumber=CN32J1C20K18 > C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 2mA > I: If#= 0 Alt= 0 #EPs= 2 Cls=07(print) Sub=01 Prot=02 Driver=usblp > E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms > E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms > Nothing shows up when I turn on the printer only when i turn it off: > > Jul 28 02:38:07 localhost kernel: usb 2-1: USB disconnect, address 3 > Jul 28 02:38:07 localhost kernel: drivers/usb/class/usblp.c: usblp0: removed > Jul 28 02:38:08 localhost kernel: ohci_hcd 0000:00:0a.1: wakeup > Jul 28 02:38:08 localhost kernel: usb 2-1: new full speed USB device using > ohci_hcd and address 4 > Jul 28 02:38:09 localhost kernel: usb 2-1: Product: DeskJet 3820 > Jul 28 02:38:09 localhost kernel: usb 2-1: Manufacturer: Hewlett-Packard > Jul 28 02:38:09 localhost kernel: usb 2-1: SerialNumber: CN32J1C20K18 > Jul 28 02:38:09 localhost kernel: usb 2-1: configuration #1 chosen from 1 > choice > Jul 28 02:38:09 localhost kernel: drivers/usb/class/usblp.c: usblp0: USB > Bidirectional printer dev 4 if 0 alt 0 proto 2 vid 0x03F0 pid 0x1904 This is what show up when you turn the printer on. It looks like everything is working normally. > I have used git bisect to pin down the bad commit. Both problems: lsusb > not showing anything due to usbfs not getting mounted automatically and > the printer not working[1] appear with the following commit: > > c182274ffe1277f4e7c564719a696a37cacf74ea is first bad commit > commit c182274ffe1277f4e7c564719a696a37cacf74ea > Author: Greg Kroah-Hartman <[EMAIL PROTECTED]> > Date: Mon Jun 19 23:59:31 2006 -0700 > > [PATCH] USB: move usb_device_class class devices to be real devices > > This moves the usb class devices that control the usbfs nodes to show up > in the proper place in the larger device tree. > > No userspace changes is needed, this is compatible due to the symlinks > generated by the driver core. > > Cc: Kay Sievers <[EMAIL PROTECTED]> > Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]> > > :040000 040000 879a23a817afb7237bb79a24d2b80ebf66ec52cd > a9f43bad474a0d1877db24a11282427e863a2718 M drivers > :040000 040000 167350de305feb4e79d2656f00b28475461405ce > e2957848b084cce6cbab275d636ee8685ddbd789 M include Are you certain this patch is responsible? That is, if you remove the patch does everything then work correctly? This really appears to be a problem with ubuntu, not with the kernel. Have you tried asking on an ubuntu mailing list? Alan Stern ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
