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Command: cmpci | Section: 4 | Source: OpenBSD | File: cmpci.4
CMPCI(4) FreeBSD Kernel Interfaces Manual CMPCI(4)
NAME
cmpci - C-Media CMI8338/CMI8738/CMI8768 PCI audio device
SYNOPSIS
cmpci* at pci?
audio* at cmpci?
DESCRIPTION
The cmpci driver supports the C-Media CMI8338A, CMI8338B, CMI8738,
CMI8738B and CMI8768 sound chips present in some PCI sound cards and some
integrated PC motherboard chipsets (such as the SiS 530).
Hardware features:
o Supports 8 common sample rates from 5512 Hz to 48000 Hz
o Hardware full-duplex support enables simultaneous record and
playback
o Some CMI8738 versions support 4 and 6 channel playback
o CMI8768 chips support 4, 6, and 8 channel playback
o CMI8768 chips can only record sample rates of 44100 Hz or 48000
Hz
o Hardware copying of front to rear for playing stereo input on 4
speakers
o S/PDIF input and output
SEE ALSO
audio(4), intro(4), pci(4)
HISTORY
The cmpci device driver appeared in OpenBSD 2.7.
BUGS
The Joystick port is not supported.
FreeBSD 14.1-RELEASE-p8 July 31, 2010 FreeBSD 14.1-RELEASE-p8