FW_MGMT_IOC_INTF_BACKEND_FW_UPDATE 138 drivers/staging/greybus/Documentation/firmware/firmware.c ret = ioctl(fd, FW_MGMT_IOC_INTF_BACKEND_FW_UPDATE, &backend_update); FW_MGMT_IOC_INTF_BACKEND_FW_UPDATE 470 drivers/staging/greybus/fw-management.c case FW_MGMT_IOC_INTF_BACKEND_FW_UPDATE: