On Wed, Jan 29, 2003, Oliver Kurth <[EMAIL PROTECTED]> wrote:
> With my at76c503 driver, I get this error:
> 
> usb.c: usbdfu driver claimed interface d917c740
> usb.c: registered new driver at76c503
> at76c503.c: driver registered
> uhci.c: uhci_result_control() failed with status 440000
> [df5a70c0] link (1f5a7062) element (19127030)
>  Element != First TD
>   0: [d9127000] link (19127030) e3 Length=7 MaxLen=7 DT0 EndPt=0 Dev=5, 
>PID=2d(SETUP) (buf=1917c7c0)
>   1: [d9127030] link (19127060) e0 Stalled CRC/Timeo Length=7ff MaxLen=7 DT1 EndPt=0 
>Dev=5, PID=69(IN) (buf=189a7000)
>   2: [d9127060] link (19127090) e3 SPD Active Length=0 MaxLen=7 DT0 EndPt=0 Dev=5, 
>PID=69(IN) (buf=189a7008)
>   3: [d9127090] link (191270c0) e3 SPD Active Length=0 MaxLen=1 DT1 EndPt=0 Dev=5, 
>PID=69(IN) (buf=189a7010)
>   4: [d91270c0] link (00000001) e3 IOC Active Length=0 MaxLen=7ff DT1 EndPt=0 Dev=5, 
>PID=e1(OUT) (buf=00000000)
> 
> usbdevfs: USBDEVFS_CONTROL failed dev 5 rqt 128 rq 6 len 18 ret -84
> 
> This happens just after the usbdfu module (in at76c503 package) has
> downloaded the firmware, in the probe() function. I guess one reason
> might be that at that moment the device has changed its interfaces
> and this confuses uhci. It does not happen on another host with
> ohci. Haven't tried usb-uhci yet.
> 
> Is this anything I have to worry about? Anything I can do in the driver?
> 
> I looked at the relevant code of uhci_result_control() in uhci, but
> I do not understand it yet.

It's not because it's getting confused. The UHCI driver is at a lower
layer than that.

When you say "changed its interfaces", what do you mean? That you had
switched alternate settings? You had switched configuration?

JE



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