Add experimental support for usb serial console and polled mode during DDB.

Submitted by:	Hans Petter Selasky

1 files changed, 9 insertions, 0 deletions

diff --git a/sys/dev/usb/serial/uftdi.c b/sys/dev/usb/serial/uftdi.c
index 52a070b..05a2818 100644
--- a/sys/dev/usb/serial/uftdi.c
+++ b/sys/dev/usb/serial/uftdi.c
@@ -156,6 +156,7 @@ static void	uftdi_stop_read(struct ucom_softc *);
 static void	uftdi_start_write(struct ucom_softc *);
 static void	uftdi_stop_write(struct ucom_softc *);
 static uint8_t	uftdi_8u232am_getrate(uint32_t, uint16_t *);
+static void	uftdi_poll(struct ucom_softc *ucom);
 
 static const struct usb_config uftdi_config[UFTDI_N_TRANSFER] = {
 
@@ -190,6 +191,7 @@ static const struct ucom_callback uftdi_callback = {
 	.ucom_stop_read = &uftdi_stop_read,
 	.ucom_start_write = &uftdi_start_write,
 	.ucom_stop_write = &uftdi_stop_write,
+	.ucom_poll = &uftdi_poll,
 };
 
 static device_method_t uftdi_methods[] = {
@@ -808,3 +810,10 @@ done:
 	*rate = result;
 	return (0);
 }
+
+static void
+uftdi_poll(struct ucom_softc *ucom)
+{
+	struct uftdi_softc *sc = ucom->sc_parent;
+	usbd_transfer_poll(sc->sc_xfer, UFTDI_N_TRANSFER);
+}