Symbol: USB_CDC_SERIAL_STATE_RING_SIGNAL
drivers/usb/class/cdc-acm.c
344
if (newctrl & USB_CDC_SERIAL_STATE_RING_SIGNAL)
drivers/usb/class/cdc-acm.c
947
(acm->ctrlin & USB_CDC_SERIAL_STATE_RING_SIGNAL ? TIOCM_RI : 0) |