On Fri, Jul 27, 2007 at 09:24:15AM +0200, Jean-Claude Repetto wrote: > Alan Stern a ?crit : > > On Thu, 26 Jul 2007, Jean-Claude Repetto wrote: > > > >> Alan Stern wrote: > >>> On Wed, 25 Jul 2007, Jean-Claude Repetto wrote: > >>> > >>>> Hi, > >>>> > >>>> I have a device (a TomTom GPS) that is seen as a memory device when > >>>> connected via USB. > >>>> s > >>>> If I plug the device before booting the PC, it is detected and > >>>> accessible via /dev/sdb . > >>>> But, if I plug the device after the PC has booted, the device is not > >>>> accessible (the /dev/sdb device is not created). Idem if I disconnect > >>>> and reconnect the device. > >>>> > >>>> I am using a x86 Gentoo system with kernel 2.6.22 (but I have also > >>>> tested kernels 2.6.20 and 2.6.21). > >>>> > >>>> I have already asked for help on the Gentoo forums, but I got no useful > >>>> answer. I hope I'll be more lucky here ! > >>>> > >>>> BTW, I have tested the same device on the same computer with Ubuntu > >>>> 7.04, > >>> What version of the kernel does that use? Do you have a usb-storage > >>> log showing what happens when you plug the device in after booting? > >>> > >> The kernel is ubuntu-2.6.20-16 . Here is the log (but not in debug mode) : > >> > >> Jul 25 22:06:56 ubuntu kernel: [ 229.509634] usb 1-2: new full speed > >> USB device using uhci_hcd and address 2 > >> Jul 25 22:06:56 ubuntu kernel: [ 229.688469] usb 1-2: configuration #1 > >> chosen from 1 choice > >> Jul 25 22:06:57 ubuntu kernel: [ 229.801681] usbcore: registered new > >> interface driver libusual > >> Jul 25 22:06:57 ubuntu kernel: [ 229.824119] Initializing USB Mass > >> Storage driver... > >> Jul 25 22:06:57 ubuntu kernel: [ 229.824212] scsi2 : SCSI emulation for > >> USB Mass Storage devices > >> Jul 25 22:06:57 ubuntu kernel: [ 229.824274] usbcore: registered new > >> interface driver usb-storage > >> Jul 25 22:06:57 ubuntu kernel: [ 229.824278] USB Mass Storage support > >> registered. > >> Jul 25 22:07:02 ubuntu kernel: [ 234.824612] scsi 2:0:0:0: > >> Direct-Access TomTom ONE PQ: 0 ANSI: 2 > >> Jul 25 22:07:02 ubuntu kernel: [ 234.829627] sd 2:0:0:0: Attached scsi > >> removable disk sdb > >> Jul 25 22:07:02 ubuntu kernel: [ 234.829682] sd 2:0:0:0: Attached scsi > >> generic sg1 type 0 > >> Jul 25 22:07:02 ubuntu kernel: [ 235.003342] SCSI device sdb: 4019200 > >> 512-byte hdwr sectors (2058 MB) > >> Jul 25 22:07:02 ubuntu kernel: [ 235.006335] sdb: Write Protect is off > >> Jul 25 22:07:02 ubuntu kernel: [ 235.013324] SCSI device sdb: 4019200 > >> 512-byte hdwr sectors (2058 MB) > >> Jul 25 22:07:02 ubuntu kernel: [ 235.016321] sdb: Write Protect is off > >> Jul 25 22:07:02 ubuntu kernel: [ 235.016769] sdb: > > > > That all looks normal. > > Yes, on Ubuntu it is working. > > > If you create the device node by hand, does it > > work? The command is > > > > mknod /dev/sdb b 8 16 > > On Gentoo : > > # mknod /dev/sdb b 8 16 > mknod: `/dev/sdb': File exists
That means it is working properly, have you tried to just mount the device? thanks, greg k-h ------------------------------------------------------------------------- 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/ _______________________________________________ Linux-usb-users@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
