Alvar Kusma kirjutas: > So question remains: How to access SW1 (reset) button state as input pin > from user software? I have some doubts, that 4801 manual here doesn't apply.
Allright, some progress. Reset button in "Soft" mode is connected over LPC903 MCU to CS5536 GPIO 25. Latch can be controlled via CS5536 GPIO 24. Following works under linux (cs5535_gpio mask enables only 3 GPIOs in /dev): modprobe cs5535_gpio.ko major=253 mask=0x03000040 [ -c /dev/led-error ] || mknod /dev/led-error c 253 6 [ -c /dev/btn-reset ] || mknod /dev/btn-reset c 253 25 [ -c /dev/reset-latch ] || mknod /dev/reset-latch c 253 24 # Set up btn-reset GPIO as input cat /dev/btn-reset | sed -e 's/i/I/g;s/O/o/g' > /dev/btn-reset # Set up reset-latch as output and to LOW (disable latch) cat /dev/reset-latch | sed -e 's/I/i/g;s/o/O/g;s/H/L/g' > /dev/reset-latch Reset button state can be now controlled from userspace by cat /dev/btn-reset | cut -c 1 Returns 1 if button is down, otherwise 0. -- =<Alvar>= _______________________________________________ Soekris-tech mailing list [email protected] http://lists.soekris.com/mailman/listinfo/soekris-tech
