On Thursday 16 Jan 2003 8:22 pm, Greg KH wrote:
> On Thu, Jan 16, 2003 at 08:10:26PM +0000, oliver stieber wrote:
> > Patch taking account of log2 intervals for iso and interrupt urbs.
> Do you really want to fall through here?
>
> greg k-h
oops.... I've put the blank line back in too.
--- linux-2.5.54/drivers/usb/core/devio.c 2003-01-02 03:22:02.000000000 +0000
+++ /usr/src/linux/drivers/usb/core/devio.c 2003-01-16 20:50:58.000000000 +0000
@@ -854,13 +854,23 @@
return -EINVAL;
}
uurb.buffer_length = totlen;
+ if(!(ep_desc = usb_epnum_to_ep_desc(ps->dev, uurb.endpoint)))
+ return -ENOENT;
+ interval = 1 << (ep_desc->bInterval-1);
break;
case USBDEVFS_URB_TYPE_INTERRUPT:
uurb.number_of_packets = 0;
if (!(ep_desc = usb_epnum_to_ep_desc(ps->dev, uurb.endpoint)))
return -ENOENT;
- interval = ep_desc->bInterval;
+ switch(ps->dev->speed){
+ case USB_SPEED_HIGH:
+ interval = 1 << (ep_desc->bInterval-1);
+ break;
+ default:
+ interval = ep_desc->bInterval;
+ }
+
if (uurb.buffer_length > 16384)
return -EINVAL;
if (!access_ok((uurb.endpoint & USB_DIR_IN) ? VERIFY_WRITE :
VERIFY_READ, uurb.buffer, uurb.buffer_length))
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