Re: pxa27x_udc, linux host rndis/cdc problems

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On Wed, 2009-05-27 at 22:48 -0400, Aric D. Blumer wrote:
> On 05/20/09 00:25, David Brownell wrote:
> 
> I was finally able to take the time to try this out, and you are correct
> about the versioning.  If I use 'USB_DEVICE(0x0525, 0xa4a2)' in
> cdc_subset.c, the proper driver is loaded, and it works.  Below is the
> dmesg output.  The fact that the zaurus driver is still being loaded is
> a bit strange to me, but perhaps that's expected.
> 
> usb 5-1: new full speed USB device using uhci_hcd and address 8
> usb 5-1: configuration #1 chosen from 1 choice
> usb 5-1: New USB device found, idVendor=049f, idProduct=505a
> usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
> usb 5-1: Product: Ethernet Gadget
> usb 5-1: Manufacturer: Linux 2.6.28-sdg with pxa27x_udc
> usb0: register 'cdc_subset' at usb-0000:00:1d.0-1, Linux Device,
> 06:69:61:0f:65:f0
> usbcore: registered new interface driver cdc_subset
> usbcore: registered new interface driver zaurus

Hello, I am sorry to jump in here but you might have an answer for me. I
wish I could get the same dmesg output on my linux host. I am using the
pxa27x_udc driver + ethernet_gadget + rndis. When plugging the USB cable
from the PXA270 board to a PC (no matter if a Linux or Windows PC)
nothing happens on the PC side and dmesg output on the board is:

pxa27x-udc pxa27x-udc: USB reset
pxa27x-udc pxa27x-udc: USB reset start
pxa27x-udc pxa27x-udc: ep0:set_ep0state:
state=WAIT_FOR_SETUP->WAIT_FOR_SETUP, udccsr0=0x000, udcbcr=0

Does anyone have a clue what can cause this?
The driver version is: version 2008-04-18.

The hardware works with the driver of an older proprietary embedded
linux dist which we try to get rid of. 

Any hints are very appreciated,
Marco


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