IOCNR_HP_SET_CHANNEL 84 drivers/usb/class/usblp.c #define LPIOC_HP_SET_CHANNEL _IOC(_IOC_WRITE, 'P', IOCNR_HP_SET_CHANNEL, 0) IOCNR_HP_SET_CHANNEL 584 drivers/usb/class/usblp.c case IOCNR_HP_SET_CHANNEL: