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authorMathias Nyman <mathias.nyman@linux.intel.com>2015-12-10 10:59:25 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-01-25 07:16:52 +0300
commit8a1b2725a60d3267135c15e80984b4406054f650 (patch)
treecd8d8bfd21d736013c7ebbb3344dded1a32e9c52 /drivers/usb/core/urb.c
parent73a02d32458ecff5b6241e7e7bd6445f70400bad (diff)
downloadlinux-8a1b2725a60d3267135c15e80984b4406054f650.tar.xz
usb: define USB_SPEED_SUPER_PLUS speed for SuperSpeedPlus USB3.1 devices
Add a new USB_SPEED_SUPER_PLUS device speed, and make sure usb core can handle the new speed. In most cases the behaviour is the same as with USB_SPEED_SUPER SuperSpeed devices. In a few places we add a "Plus" string to inform the user of the new speed. Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/core/urb.c')
-rw-r--r--drivers/usb/core/urb.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index 3d274778caaf..c601e25b609f 100644
--- a/drivers/usb/core/urb.c
+++ b/drivers/usb/core/urb.c
@@ -401,7 +401,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
/* SuperSpeed isoc endpoints have up to 16 bursts of up to
* 3 packets each
*/
- if (dev->speed == USB_SPEED_SUPER) {
+ if (dev->speed >= USB_SPEED_SUPER) {
int burst = 1 + ep->ss_ep_comp.bMaxBurst;
int mult = USB_SS_MULT(ep->ss_ep_comp.bmAttributes);
max *= burst;
@@ -499,6 +499,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
}
/* too big? */
switch (dev->speed) {
+ case USB_SPEED_SUPER_PLUS:
case USB_SPEED_SUPER: /* units are 125us */
/* Handle up to 2^(16-1) microframes */
if (urb->interval > (1 << 15))