HARMONY(4) | Device Drivers Manual (hppa) | HARMONY(4) |
harmony
—
harmony* at gsc?
audio* at harmony?
harmony
device uses the Crystal Semiconductor CS4215
16-Bit Multimedia Audio Codec or Analog Devices AD1849 SoundPort(R) Stereo
Codec chip to implement the audio device interface described in
audio(4). This device is found
on most HP PA-RISC workstations. The harmony
has a
maximum precision of 16 bits and has a stereo input and stereo output.
On HP 9000/712 models harmony
also
provides two additional channels for an add-on card with two fax/voice
modems.
One of the hardware registers reflects the state of the CHI bus that is used to communicate with the codec and thus being sampled at a low accuracy secondary frequency (such as timeout(9)) produces poor quality random bit stream that is fed into the entropy pool of rnd(4).
harmony
audio:
harmony
first appeared in
OpenBSD 3.3. It was ported to NetBSD
1.6 by Chuck Silvers.
February 17, 2017 | NetBSD 9.4 |