Re: [PATCH V8 0/3] USB: OHCI: Start splitting up the driver

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On Tue, 28 May 2013, Arnd Bergmann wrote:

> Seems to basically work now, but I'm getting run-time errors after
> loading the driver, with patch 1/3 applied:
> 
> [15916.438452] input: Logitech USB-PS/2 Optical Mouse as /devices/pci0000:00/0000:00:12.0/usb3/3-1/3-1:1.0/input/input26
> [15916.438584] hid-generic 0003:046D:C050.0017: input,hidraw0: USB HID v1.10 Mouse [Logitech USB-PS/2 Optical Mouse] on usb-0000:00:12.0-1/input0
> [15917.465597] usb 3-3: new full-speed USB device number 3 using ohci-pci
> [15917.636712] usb 3-3: New USB device found, idVendor=0ccd, idProduct=0077
> [15917.636717] usb 3-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> [15917.636721] usb 3-3: Product: USB PnP Sound Device
> [15917.636724] usb 3-3: Manufacturer: C-Media Electronics Inc.      
> [15917.812827] input: C-Media Electronics Inc.       USB PnP Sound Device as /devices/pci0000:00/0000:00:12.0/usb3/3-3/3-3:1.3/input/input27
> [15917.812919] hid-generic 0003:0CCD:0077.0018: input,hidraw1: USB HID v1.00 Device [C-Media Electronics Inc.       USB PnP Sound Device] on usb-0000:00:12.0-3/input3
> [15918.789906] cannot submit urb (err = -18)
> [15918.790163] cannot submit urb (err = -18)
> [15918.842095] usb 7-1: new full-speed USB device number 2 using ohci-pci
> [15919.883135] cannot submit urb (err = -18)
> [15919.883604] cannot submit urb (err = -18)
> [15919.883613] cannot submit urb (err = -18)
> [15919.883616] cannot submit urb (err = -18)
> [15919.883619] cannot submit urb (err = -18)

Those error messages are annoying; they don't use dev_err(), so they
don't include the device and driver names.  There's no way to know what
they refer to.  I rather suspect they come from the usbaudio driver.

When you ran this test, did you have commit 815fa7b91761 applied?

Does the same problem occur without Manjunath's changes?

Alan Stern

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