On Thu, 24 Oct 2002, David Brownell wrote:
> --- ./drivers/usb-dist/misc/usbtest.c Fri Oct 18 21:45:00 2002
> +++ ./drivers/usb/misc/usbtest.c Sun Oct 20 22:51:02 2002
> @@ -450,5 +450,8 @@
> int expected = udev->actconfig->bConfigurationValue;
>
> - /* [9.4.2] get_configuration always works */
> + /* [9.4.2] get_configuration always works
> + * ... although some cheap devices (like one TI Hub I've got)
> + * won't return config descriptors except before set_config.
> + */
> retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
> USB_REQ_GET_CONFIGURATION, USB_RECIP_DEVICE,
Sorry, had it fixed some days ago but forgot to send the patch...
Well, this is certainly not the crucial part of this patch and I'm not
sure about what your TI hub is doing there - but I had some good
experience with GetConfiguration there after changing to DIR_IN ;-)
Martin
-----------------
--- v2.5.42-md/drivers/usb/misc/usbtest.c.p4 Thu Oct 17 13:38:52 2002
+++ v2.5.42-md/drivers/usb/misc/usbtest.c Thu Oct 17 13:55:02 2002
@@ -451,7 +451,7 @@
/* [9.4.2] get_configuration always works */
retval = usb_control_msg (udev, usb_rcvctrlpipe (udev, 0),
- USB_REQ_GET_CONFIGURATION, USB_RECIP_DEVICE,
+ USB_REQ_GET_CONFIGURATION, USB_DIR_IN|USB_RECIP_DEVICE,
0, 0, dev->buf, 1, HZ * USB_CTRL_GET_TIMEOUT);
if (retval != 1 || dev->buf [0] != expected) {
dbg ("%s get config --> %d (%d)", dev->id, retval,
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