NAME
tctrl —
Tadpole Microcontroller
Interface
SYNOPSIS
tctrl0 at obio0
DESCRIPTION
Thetctrl 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).
SEE ALSO
reboot(2), sparc/intro(4), sparc/pnozz(4), sparc/tslot(4), powerd(8)