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authorDan Williams <dan.j.williams@intel.com>2009-12-22 17:21:47 -0700
committerDan Williams <dan.j.williams@intel.com>2009-12-22 17:21:47 -0700
commitf80ca163d65903276bec7045a484a79c0897eb2d (patch)
tree97c7d61d43248b9db0757a76af80ff58b98b5599 /include/linux/input.h
parent0794ec8ce327ec74416b569b8fb1951274693700 (diff)
parenta6d52d70677e99bdb89b6921c265d0a58c22e597 (diff)
Merge branch 'ioat' into fixes
Diffstat (limited to 'include/linux/input.h')
-rw-r--r--include/linux/input.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/input.h b/include/linux/input.h
index 0ccfc30cd40f..c2b1a7d244d9 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -1377,6 +1377,10 @@ extern struct class input_class;
* methods; erase() is optional. set_gain() and set_autocenter() need
* only be implemented if driver sets up FF_GAIN and FF_AUTOCENTER
* bits.
+ *
+ * Note that playback(), set_gain() and set_autocenter() are called with
+ * dev->event_lock spinlock held and interrupts off and thus may not
+ * sleep.
*/
struct ff_device {
int (*upload)(struct input_dev *dev, struct ff_effect *effect,