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usb: pl2303: also use the divisor based baud rate encoding method for baud rates < 115200 with HX chips

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Now that the divisor based baud rate encoding method has been fixed and
extended, it can also be used for baud rates < 115200 baud with HX
chips.
This makes it possible to adjust the baud rate almost continuously
instead of just beeing able to select between 16 fixed standard values.

Tested with a PL2303HX 04463A (week 46, 2004, rev 3A).

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Frank Schäfer 2013-08-06 19:26:28 +02:00 • committed by Greg Kroah-Hartman
commit 61fa8d694b
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/serial/pl2303.c
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@ -395,7 +395,7 @@ static void pl2303_encode_baudrate(struct tty_struct *tty,
* 2) Divisor based method: encodes a divisor to a base value (12MHz*32) * 2) Divisor based method: encodes a divisor to a base value (12MHz*32)
* => supported by HX chips (and likely not by type_0/1 chips) * => supported by HX chips (and likely not by type_0/1 chips)
*/ */
if (type != HX || baud <= 115200) if (type != HX)
baud = pl2303_baudrate_encode_direct(baud, type, buf); baud = pl2303_baudrate_encode_direct(baud, type, buf);
else else
baud = pl2303_baudrate_encode_divisor(baud, type, buf); baud = pl2303_baudrate_encode_divisor(baud, type, buf);