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Commit 3b009c63 authored by David Brownell's avatar David Brownell Committed by Greg Kroah-Hartman
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USB: fix usb-serial/ftdi build warning 



Fix annoying build warning:

drivers/usb/serial/ftdi_sio.c:890: warning: enumeration value `FT232RL' not handled in switch

Also add logic to detect FT232R chips (version 6.00, usb 2.0 full speed),
so that case isn't completely useless.  (NOTE:  FT232RL and FT232RQ are
the same chip in different packages:  L is SSOP, Q is QFN.)

Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent b46d60fc

drivers/usb/serial/ftdi_sio.c

+5 −1
Original line number Diff line number Diff line
@@ -879,6 +879,7 @@ static __u32 get_ftdi_divisor(struct usb_serial_port * port) 
		break;

	case FT232BM: /* FT232BM chip */

	case FT2232C: /* FT2232C chip */

	case FT232RL:

		if (baud <= 3000000) {

			div_value = ftdi_232bm_baud_to_divisor(baud);

		} else {
@@ -1021,9 +1022,12 @@ static void ftdi_determine_type(struct usb_serial_port *port) 
		/* (It might be a BM because of the iSerialNumber bug,

		 * but it will still work as an AM device.) */

		priv->chip_type = FT8U232AM;

	} else {

	} else if (version < 0x600) {

		/* Assume its an FT232BM (or FT245BM) */

		priv->chip_type = FT232BM;

	} else {

		/* Assume its an FT232R  */

		priv->chip_type = FT232RL;

	}

	info("Detected %s", ftdi_chip_name[priv->chip_type]);

}