samples/subsys/usb/webusb/src/webusb_serial.c
/*
 * @brief Poll the device for input.
 *
 * @return -ENOTSUP Since underlying USB device controller always uses
 * interrupts, polled mode UART APIs are not implemented for the UART interface
 * exported by CDC ACM driver. Apps should use fifo_read API instead.
 */
@brief Poll the device for input.
@return -ENOTSUP Since underlying USB device controller always uses
interrupts, polled mode UART APIs are not implemented for the UART interface
exported by CDC ACM driver. Apps should use fifo_read API instead.
@brief Poll the device for input . @return - ENOTSUP Since underlying USB device controller always uses interrupts polled mode UART APIs are not implemented for the UART interface exported by CDC ACM driver . Apps should use fifo_read API instead .
static int webusb_serial_poll_in(struct device *dev, unsigned char *c)
{
	ARG_UNUSED(dev);
	ARG_UNUSED(c);
	return -ENOTSUP;
}
static int webusb_serial_poll_in ( struct device * dev , unsigned char * c ) { ARG_UNUSED ( dev ) ; ARG_UNUSED ( c ) ; return - ENOTSUP ; }
@brief Poll the device for input.
@brief Poll the device for input .