Refine r237102 a bit:

- Anounce JTAG interfaces deliberately skipped.
- Bring back empty lines too eagerly removed.

MFC after:	3 days

2 files changed, 16 insertions, 4 deletions

diff --git a/sys/dev/usb/serial/uftdi.c b/sys/dev/usb/serial/uftdi.c
index 7990ce6..5905aa1 100644
--- a/sys/dev/usb/serial/uftdi.c
+++ b/sys/dev/usb/serial/uftdi.c
@@ -38,7 +38,7 @@ __FBSDID("$FreeBSD$");
  */
 
 /*
- * FTDI FT8U100AX serial adapter driver
+ * FTDI FT2232x, FT8U100AX and FT8U232AM serial adapter driver
  */
 
 #include <sys/stdint.h>
@@ -278,9 +278,15 @@ uftdi_probe(device_t dev)
 	 */
 	id = usbd_lookup_id_by_info(uftdi_devs, sizeof(uftdi_devs),
 	    &uaa->info);
-	if (id == NULL || ((id->driver_info & UFTDI_FLAG_JTAG) != 0 &&
-	    uaa->info.bIfaceIndex == UFTDI_IFACE_INDEX_JTAG))
+	if (id == NULL)
 		return (ENXIO);
+	if ((id->driver_info & UFTDI_FLAG_JTAG) != 0 &&
+	    uaa->info.bIfaceIndex == UFTDI_IFACE_INDEX_JTAG) {
+		printf("%s: skipping JTAG interface at %u.%u\n",
+		    device_get_name(dev), usbd_get_bus_index(uaa->device),
+		    usbd_get_device_index(uaa->device));
+		return (ENXIO);
+	}
 	uaa->driver_info = id->driver_info;
 	return (BUS_PROBE_SPECIFIC);
 }
diff --git a/sys/dev/usb/serial/uftdi_reg.h b/sys/dev/usb/serial/uftdi_reg.h
index 76234ee..2398d45 100644
--- a/sys/dev/usb/serial/uftdi_reg.h
+++ b/sys/dev/usb/serial/uftdi_reg.h
@@ -70,6 +70,7 @@
 #define	FTDI_SIO_RESET_SIO 0
 #define	FTDI_SIO_RESET_PURGE_RX 1
 #define	FTDI_SIO_RESET_PURGE_TX 2
+
 /*
  * BmRequestType:  0100 0000B
  * bRequest:       FTDI_SIO_SET_BAUDRATE
@@ -133,6 +134,7 @@ enum {
 #define	FTDI_SIO_SET_DATA_STOP_BITS_15 (0x1 << 11)
 #define	FTDI_SIO_SET_DATA_STOP_BITS_2 (0x2 << 11)
 #define	FTDI_SIO_SET_BREAK (0x1 << 14)
+
 /*
  * BmRequestType:   0100 0000B
  * bRequest:        FTDI_SIO_MODEM_CTRL
@@ -168,6 +170,7 @@ enum {
 #define	FTDI_SIO_SET_RTS_MASK 0x2
 #define	FTDI_SIO_SET_RTS_HIGH (2 | ( FTDI_SIO_SET_RTS_MASK << 8))
 #define	FTDI_SIO_SET_RTS_LOW (0 | ( FTDI_SIO_SET_RTS_MASK << 8))
+
 /*
  *   BmRequestType:  0100 0000b
  *   bRequest:       FTDI_SIO_SET_FLOW_CTRL
@@ -197,6 +200,7 @@ enum {
 #define	FTDI_SIO_RTS_CTS_HS 0x1
 #define	FTDI_SIO_DTR_DSR_HS 0x2
 #define	FTDI_SIO_XON_XOFF_HS 0x4
+
 /*
  *  BmRequestType:   0100 0000b
  *  bRequest:        FTDI_SIO_SET_EVENT_CHAR
@@ -219,6 +223,7 @@ enum {
  * data read so far - rather than wait 40ms or until 62 bytes are read
  * which is what normally happens.
  */
+
 /*
  *  BmRequestType:  0100 0000b
  *  bRequest:       FTDI_SIO_SET_ERROR_CHAR
@@ -237,6 +242,7 @@ enum {
  * Set the parity error replacement character for the specified communications
  * port.
  */
+
 /*
  *   BmRequestType:   1100 0000b
  *   bRequest:        FTDI_SIO_GET_MODEM_STATUS
@@ -267,8 +273,8 @@ enum {
 #define	FTDI_SIO_DSR_MASK 0x20
 #define	FTDI_SIO_RI_MASK  0x40
 #define	FTDI_SIO_RLSD_MASK 0x80
+
 /*
- *
  * DATA FORMAT
  *
  * IN Endpoint