tctrl
—
Tadpole Microcontroller Interface
The tctrl
driver provides control over many functions on
the Tadpole SPARCbook 3 series laptops, via their TS102 chip. The
microcontroller is used to power the TFT display down when the laptop lid is
closed and when the screen is blanked by the
sparc/pnozz(4) driver.
The tctrl
is also used to power the laptop off when
the reboot(2) system call is
used with the RB_POWERDOWN flag is set. Power button
events are forwarded to
powerd(8). The PCMCIA part of
the controller is supported by
sparc/tslot(4).