Messages in this thread | | | From | David Brownell <> | Subject | Re: [linux-usb-devel] 2.6.10-rc1 OHCI usb error messages | Date | Tue, 26 Oct 2004 09:05:14 -0700 |
| |
On Tuesday 26 October 2004 08:28, Colin Leroy wrote: > Hi, > > 2.6.10-rc1 gives the following error messages on my iBook G4, which uses > the ohci-hcd driver: > > usb usb2: usbfs: USBDEVFS_CONTROL failed cmd usbmodules rqt 128 rq 6 len 18 ret -113 > usb usb2: usbfs: USBDEVFS_CONTROL failed cmd usbmodules rqt 128 rq 6 len 18 ret -113 > usb usb2: usbfs: USBDEVFS_CONTROL failed cmd usbmodules rqt 128 rq 6 len 18 ret -113 > usb usb3: usbfs: USBDEVFS_CONTROL failed cmd usbmodules rqt 128 rq 6 len 18 ret -113 > usb usb3: usbfs: USBDEVFS_CONTROL failed cmd usbmodules rqt 128 rq 6 len 18 ret -113 > usb usb3: usbfs: USBDEVFS_CONTROL failed cmd usbmodules rqt 128 rq 6 len 18 ret -113 > usb usb3: string descriptor 0 read error: -113 > usb usb3: string descriptor 0 read error: -113 > usb usb3: string descriptor 0 read error: -113 > usb usb2: string descriptor 0 read error: -113 > usb usb2: string descriptor 0 read error: -113 > ... > usb usb2: string descriptor 0 read error: -113 > usb usb2: string descriptor 0 read error: -113
What's wrong there is emitting voluminous diagnostics for something that's not an error ... the root hub is suspended, and as with any suspended device, you can't talk to it.
The descriptor read logic can skip retries in that case, and usbfs should refuse up front to talk to suspended devices. (Silently!)
- Dave
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |