On Sat, 26 Jun 2004, Tommy Faasen wrote:
> Alan Stern wrote:
>
> thanks for the explenation
>
> >
> >Come to think of it, I told you to increase the time delay before the
> >usb_get_device_descriptor() call. But that comes _after_ the call to
> >hub_set_address(), which is the one that's failing. Maybe you should try
> >adding a line that says
> >
> > msleep(100);
> >
> >(or perhaps a longer delay -- you can try 1000 or even higher) immediately
> >before the call to hub_set_address().
> >
> >
> >
> In the code I added msleep(1000) like this
>
> for (i = 0; i < GET_DESCRIPTOR_TRIES; ++i) {
> usb_get_descriptor_broken(udev);
> msleep(200);
> for (j = 0; j < SET_ADDRESS_TRIES; ++j) {
> msleep(1000);
> retval = hub_set_address(udev);
> if (retval >= 0)
> break;
> msleep(200);
> }
>
> Unfortunatley, Still no luck
>
> usb 1-2: new full speed USB device using address 3
> uhci_hcd 0000:00:07.2: uhci_result_control: failed with status 440000
> [dbeb6240] link (1beb61e2) element (1bea1040)
> 0: [dbea1040] link (1bea1080) e0 Stalled CRC/Timeo Length=7 MaxLen=7
> DT0 EndPt=0 Dev=0, PID=2d(SETUP) (buf=1e3b8568)
> 1: [dbea1080] link (00000001) e3 IOC Active Length=0 MaxLen=7ff DT1
> EndPt=0 Dev=0, PID=69(IN) (buf=00000000)
Now that's strange. The failing message is the Set-Address. (You can
tell because it has a Setup stage and a Status stage but no Data stage.)
This means that the Get-Descriptor message sent by
usb_get_descriptor_broken() succeeded! For some reason this device just
doesn't like to respond to those Set-Address messages. Maybe it is unable
to use certain addresses? You could try changing SET_CONFIG_TRIES
(defined elsewhere in hub.c) to something larger, like 10 or 20. Each of
those iterations uses a different address.
Basically I have no idea what's going on with your device. Is there any
hope of getting some technical information from the manufacturer?
Alan Stern
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