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Diffstat (limited to 'include/linux/input.h')
-rw-r--r-- | include/linux/input.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/input.h b/include/linux/input.h index db563bbac9dd..7be8a6537b57 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -1389,6 +1389,10 @@ 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, |