register_sound_special_device(9) [centos man page]
REGISTER_SOUND_SPECI(9) Sound Devices REGISTER_SOUND_SPECI(9)NAME
register_sound_special_device - register a special sound node
int register_sound_special_device(const struct file_operations * fops, int unit, struct device * dev);
File operations for the driver
Unit number to allocate
Allocate a special sound device by minor number from the sound subsystem.
The allocated number is returned on success. On failure, a negative error code is returned.
COPYRIGHT Kernel Hackers Manual 3.10 June 2014 REGISTER_SOUND_SPECI(9)
Check Out this Related Man Page
ISDNTELCTL(8) BSD System Manager's Manual ISDNTELCTL(8)NAME
isdntelctl -- control isdn4bsd telephone sound format conversion
isdntelctl [-c] [-g] [-u unit] [-A] [-U] [-N]
isdntelctl is part of the isdn4bsd package and is used to configure the sound format conversion facilities of the /dev/isdntel interfaces.
The following options are available:
-c Clear the telephone input queue.
-g Get the sound format currently in use.
-u Set the /dev/isdntel unit number. The default value is zero to access device /dev/isdntel0.
-A Do A-law (ISDN line) -> mu-law (userland) conversion.
-U Do mu-law (ISDN line) -> A-law (userland) conversion.
-N Set sound conversion to do no format conversion.
The telephony data stream comes out of the line in a bit-reversed format, so the isdntel(4) driver does the bit-reversion process in any
Additionally, the user can specify to do A-law to mu-law, mu-law to A-law or no conversion at all in the isdntel driver by using the
displays the currently used sound format for device /dev/isdntel0.
SEE ALSO isdntel(4), isdnd.rc(5), isdnd(8)STANDARDS
A-law and mu-law are specified in ITU Recommendation G.711.
The isdntelctl utility and this man page were written by Hellmuth Michaelis <firstname.lastname@example.org>.
BSD April 21, 1999 BSD
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