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authorpopcornmix <popcornmix@gmail.com>2014-07-14 22:02:09 +0100
committerpopcornmix <popcornmix@gmail.com>2015-05-18 14:11:13 +0100
commitbec4d9d9cea8220ece40ba0b20f5954b50d268fa (patch)
tree9958601ffa10603fdbbcac2410c377b8d3ea5401
parent0ffd661b5b798e717ea1af35893ddd431f3c382d (diff)
downloadlinux-bec4d9d9cea8220ece40ba0b20f5954b50d268fa.tar.gz
hid: Reduce default mouse polling interval to 60Hz
Reduces overhead when using X
-rw-r--r--drivers/hid/usbhid/hid-core.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index bfbe1bedda7f..a738b25c6e49 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -49,7 +49,7 @@
* Module parameters.
*/
-static unsigned int hid_mousepoll_interval;
+static unsigned int hid_mousepoll_interval = ~0;
module_param_named(mousepoll, hid_mousepoll_interval, uint, 0644);
MODULE_PARM_DESC(mousepoll, "Polling interval of mice");
@@ -1090,8 +1090,12 @@ static int usbhid_start(struct hid_device *hid)
}
/* Change the polling interval of mice. */
- if (hid->collection->usage == HID_GD_MOUSE && hid_mousepoll_interval > 0)
- interval = hid_mousepoll_interval;
+ if (hid->collection->usage == HID_GD_MOUSE) {
+ if (hid_mousepoll_interval == ~0 && interval < 16)
+ interval = 16;
+ else if (hid_mousepoll_interval != ~0 && hid_mousepoll_interval != 0)
+ interval = hid_mousepoll_interval;
+ }
ret = -ENOMEM;
if (usb_endpoint_dir_in(endpoint)) {