[PATCH] USB: Allow high-bandwidth isochronous packets via usbfs
This patch increases an arbitrary limit on the size of
individual isochronous packets submitted via usbfs. The
limit is still arbitrary, but it's now large enough to
support the maximum packet size used by high-bandwidth
isochronous transfers.
Signed-off-by: Micah Dowty <micah@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 04f7504..b04ede7 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -982,7 +982,8 @@
return -EFAULT;
}
for (totlen = u = 0; u < uurb->number_of_packets; u++) {
- if (isopkt[u].length > 1023) {
+ /* arbitrary limit, sufficient for USB 2.0 high-bandwidth iso */
+ if (isopkt[u].length > 8192) {
kfree(isopkt);
return -EINVAL;
}