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authorDmitry Torokhov <dtor@vmware.com>2011-03-18 21:29:01 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2011-04-22 08:50:03 -0700
commit530e6b29d706356d21bed62fe13f21b96902d91e (patch)
treefdca130a6c7cfd0904add815a4dff0b80354430c
parent603c383fb3d20b1657cdae22b6b4397d1debe190 (diff)
downloadlinux-linaro-stable-530e6b29d706356d21bed62fe13f21b96902d91e.tar.gz
USB: fix formatting of SuperSpeed endpoints in /proc/bus/usb/devices
commit 2868a2b1ba8f9c7f6c4170519ebb6c62934df70e upstream. Isochronous and interrupt SuperSpeed endpoints use the same mechanisms for decoding bInterval values as HighSpeed ones so adjust the code accordingly. Also bandwidth reservation for SuperSpeed matches highspeed, not low/full speed. Signed-off-by: Dmitry Torokhov <dtor@vmware.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/usb/core/devices.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/usb/core/devices.c b/drivers/usb/core/devices.c
index 355dffcc23b0..2ce5963f273e 100644
--- a/drivers/usb/core/devices.c
+++ b/drivers/usb/core/devices.c
@@ -211,7 +211,7 @@ static char *usb_dump_endpoint_descriptor(int speed, char *start, char *end,
break;
case USB_ENDPOINT_XFER_INT:
type = "Int.";
- if (speed == USB_SPEED_HIGH)
+ if (speed == USB_SPEED_HIGH || speed == USB_SPEED_SUPER)
interval = 1 << (desc->bInterval - 1);
else
interval = desc->bInterval;
@@ -219,7 +219,8 @@ static char *usb_dump_endpoint_descriptor(int speed, char *start, char *end,
default: /* "can't happen" */
return start;
}
- interval *= (speed == USB_SPEED_HIGH) ? 125 : 1000;
+ interval *= (speed == USB_SPEED_HIGH ||
+ speed == USB_SPEED_SUPER) ? 125 : 1000;
if (interval % 1000)
unit = 'u';
else {
@@ -529,8 +530,9 @@ static ssize_t usb_device_dump(char __user **buffer, size_t *nbytes,
if (level == 0) {
int max;
- /* high speed reserves 80%, full/low reserves 90% */
- if (usbdev->speed == USB_SPEED_HIGH)
+ /* super/high speed reserves 80%, full/low reserves 90% */
+ if (usbdev->speed == USB_SPEED_HIGH ||
+ usbdev->speed == USB_SPEED_SUPER)
max = 800;
else
max = FRAME_TIME_MAX_USECS_ALLOC;