mmc driver for openwrt, part deux

Went over the MMC configuration for my openWRT router yesterday, as I wanted to relinquish the use of the SES button by the driver (GPIO4) to use it instead as a toggle button for the Wifi, and use GPIO5 for DO.
As I did just that, I also "fixed" the MMC driver to stop the Power LED from blinking every time the SD card was accessed.
The way I did that was to use the following config.h:

#define SD_CS_POWER 0x82

And the modify the spi.c to have:

static inline void mmc_spi_cs_high(void) {
port_state |= SD_CS_POWER;
(...)

Also, as I am now using GPIOs #2,3,5,7, I had to add a line

echo "0xac" > /proc/diag/gpiomask

in one of the init scripts.

For /etc/hotplug.d/button/01-radio-toggle, I am currently using the following, but I might change that to just turn the radio on/off:

if [ "$BUTTON" = "ses" ] ; then
  if [ "$ACTION" = "pressed" ] ; then
          WIFI_RADIOSTATUS=$(wlc radio)
#               touch /tmp/$WIFI_RADIOSTATUS
          case "$WIFI_RADIOSTATUS" in
          0|"")
                  uci set wireless.wl0.disabled=0
                  uci commit wireless
                  wifi
                  wlc radio 1
                  echo f > /proc/diag/led/wlan
          ;;
          1)
                  uci set wireless.wl0.disabled=1
                  uci commit wireless
                  wifi
                  wlc radio 0
                  echo 0 > /proc/diag/led/wlan
          ;;
          esac
  fi
fi

Despite the non-quite-thought-through use of the GPIOs in the default MMC driver, I'm beginning to think openWRT is the best invention since sliced bread!