send_usb_cmd
ret = send_usb_cmd(ccp, command, channel, 0, 0);
ret = send_usb_cmd(ccp, CTL_SET_FAN_FPWM, channel, val, 0);
ret = send_usb_cmd(ccp, CTL_SET_FAN_TARGET, channel, val >> 8, val);
ret = send_usb_cmd(ccp, CTL_GET_FAN_CNCT, 0, 0, 0);
ret = send_usb_cmd(ccp, CTL_GET_TMP_CNCT, 0, 0, 0);
ret = send_usb_cmd(ccp, CTL_GET_FW_VER, 0, 0, 0);
ret = send_usb_cmd(ccp, CTL_GET_BL_VER, 0, 0, 0);