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snd_jack_set_key(9) [centos man page]

SND_JACK_SET_KEY(9)					      Miscellaneous Functions					       SND_JACK_SET_KEY(9)

NAME
snd_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. RETURN
Zero if successful, or a negative error code on failure. COPYRIGHT
Kernel Hackers Manual 3.10 June 2014 SND_JACK_SET_KEY(9)

Check Out this Related Man Page

JACK.UDP(1)															       JACK.UDP(1)

NAME
jack.udp - JACK UDP Transport Client SYNOPSIS
jack.udp [options] send|recv OPTIONS
-b : Set the ring buffer size in frames (default=4096). -c : Set the client name (default=jack.udp-PID). -n : Set the number of channels, and therefore the number of JACK ports (default=2). -p : Set the port number (default=57160). -r : The remote host name, for use in send mode (default="127.0.0.1"). DESCRIPTION
jack.udp is a UDP audio transport mechansim for JACK. The send mode reads signals from a set of JACK input ports and sends UDP packets to the indicated port at the indicated host at a rate determined by the local JACK daemon. The recv mode reads incoming packets at the indi- cated port and writes the incoming data to a set of JACK output ports at a rate that is determined by the local JACK daemon. This transport mechanism is unreliable. Both send and recv clients will report buffer overflow and underflow occurences, and recv clients will report dropped and out-of-order packets, and shutdown on channel mismatch packets. In practice this mechanism can be made highly reli- able over local networks. jack.udp implements no connection logic, use jack.plumbing(1) instead. EXAMPLE
192.0.0.1:~$ jack.udp -r 192.0.0.2 send 192.0.0.2:~$ jack.udp recv AUTHOR
Rohan Drape http://slavepianos.org/rd/ SEE ALSO
jackd(1) AUTHOR
Rohan Drape <rd@slavepianos.org> Author. 01/10/2012 JACK.UDP(1)
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