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USB: fix usb-serial/ftdi build warning

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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: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
David Brownell 2007-03-23 12:54:27 -07:00 committed by Greg Kroah-Hartman
parent b46d60fc4b
commit 3b009c637f
1 changed files with 5 additions and 1 deletions
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6
drivers/usb/serial/ftdi_sio.c
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@ -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]);
}