shb(4) [netbsd man page]

SHB(4)							   BSD Kernel Interfaces Manual 						    SHB(4)

NAME

     shb -- bus for SuperH on-chip peripheral devices

SYNOPSIS

     shb* at mainbus?

DESCRIPTION

     The shb driver provides a bus to which drivers for integrated peripheral devices found in various SuperH microprocessors attach.

     adc       analog/digital converter.

     sci       serial communication interface.

     scif      serial communication interface with FIFO.

     wdog      watchdog timer.

SEE ALSO

     adc(4), sci(4), scif(4), wdog(4)

HISTORY

     The shb driver first appeared in NetBSD 1.5.

BSD
								 October 21, 2003							       BSD

AC97(4) 						   BSD Kernel Interfaces Manual 						   AC97(4)

NAME

     ac97 -- generic AC97 codec driver

DESCRIPTION

     AC97 codecs contain the analog-to-digital (A/D), digital-to-analog (D/A), and mixing circuitry of many modern sound cards.  AC97 codecs, for
     the most part, do not talk to host busses like the PCI bus directly.  Instead, they communicate through an interface chip, called the host
     controller.  The Ensoniq AudioPCI 97 (see eap(4)) is an example of such a host controller.

     Unlike many drivers, the ac97 driver does not appear in the configuration file.  Instead, the driver is automatically attached by the drivers
     that require it.

SEE ALSO

     auacer(4), auich(4), auixp(4), autri(4), auvia(4), clcs(4), clct(4), eap(4), emuxki(4), esa(4), esm(4), fms(4), neo(4), yds(4)

BUGS

     The ac97 driver does not keep track of the current user settings and instead relies on the hardware to do this.

     The ac97 driver could do more to detect mixer channels that don't work and cull them from the list.

BSD
								  October 7, 1999							       BSD