SND_JACK_SET_KEY(9) Miscellaneous Functions SND_JACK_SET_KEY(9)NAMEsnd_jack_set_key - Set a key mapping on a jack
SYNOPSIS
int snd_jack_set_key(struct snd_jack * jack, enum snd_jack_types type,
int keytype);
ARGUMENTS
jack
The jack to configure
type
Jack report type for this key
keytype
Input layer key type to be reported
DESCRIPTION
Map a SND_JACK_BTN_ button type to an input layer key, allowing
reporting of keys on accessories via the jack abstraction. If no
mapping is provided but keys are enabled in the jack type then BTN_n
numeric buttons will be reported.
If jacks are not reporting via the input API this call will have no
effect.
Note that this is intended to be use by simple devices with small
numbers of keys that can be reported. It is also possible to access the
input device directly - devices with complex input capabilities on
accessories should consider doing this rather than using this
abstraction.
This function may only be called prior to registration of the jack.
COPYRIGHTKernel Hackers Manual 3.8. June 2014 SND_JACK_SET_KEY(9)