EP1_CMD_GET_DEVICE_INFO 158 sound/usb/caiaq/device.c case EP1_CMD_GET_DEVICE_INFO: EP1_CMD_GET_DEVICE_INFO 465 sound/usb/caiaq/device.c err = snd_usb_caiaq_send_command(cdev, EP1_CMD_GET_DEVICE_INFO, NULL, 0);