The grbeep driver generates beeps on platforms (including Sun Blade 100) that use SMBbus-based registers and USB keyboards. When the KIOCCMD ioctl is issued to the USB keyboard module (see usbkbm(7M)) with command KBD_CMD_BELL/KBD_CMD_NOBELL, usbkbm(7M) passes the request to the grbeep driver to turn the beep on and off, respectively.

/platform/SUNW,Sun-Blade-100/kernel/drv/sparcv9/grbeep

64-bit ELF kernel driver

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Architecture	SMBus-based SPARC
Availability	SUNWcarx.u

kbd(1), attributes(5), bbc_beep(7D), kb(7M), usbkbm(7M)

Writing Device Drivers

None