GPIOCTL 2034 sound/pci/ctxfi/cthw20k1.c hw_write_20kx(hw, GPIOCTL, 0x13fe); GPIOCTL 2037 sound/pci/ctxfi/cthw20k1.c hw_write_20kx(hw, GPIOCTL, 0x00e6); GPIOCTL 2040 sound/pci/ctxfi/cthw20k1.c hw_write_20kx(hw, GPIOCTL, 0x00c2); GPIOCTL 2043 sound/pci/ctxfi/cthw20k1.c hw_write_20kx(hw, GPIOCTL, 0x01e6);