tctrl(4) - NetBSD Manual Pages

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TCTRL(4)             NetBSD/sparc Kernel Interfaces Manual            TCTRL(4)


NAME

     tctrl -- Tadpole Microcontroller Interface


SYNOPSIS

     tctrl0 at obio0


DESCRIPTION

     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 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 tslot(4).


SEE ALSO

     reboot(2), intro(4), pnozz(4), tslot(4), powerd(8)

NetBSD 5.2.2                    March 31, 2004                    NetBSD 5.2.2