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| author | Johan Hovold <jhovold@gmail.com> | 2012-01-16 00:36:52 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2012-01-24 20:58:46 +0100 |
| commit | cdc32fd6f7b2b2580d7f1b74563f888e4dd9eb8a (patch) | |
| tree | 4ad0042e30d0d678c953c383a9b0a2253bbf5813 | |
| parent | USB: cp210x: clean up, refactor and document speed handling (diff) | |
| download | linux-cdc32fd6f7b2b2580d7f1b74563f888e4dd9eb8a.tar.xz linux-cdc32fd6f7b2b2580d7f1b74563f888e4dd9eb8a.zip | |
USB: cp210x: initialise baud rate at open
The newer cp2104 devices require the baud rate to be initialised after
power on. Make sure it is set when port is opened.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Cc: Preston Fick <preston.fick@silabs.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/usb/serial/cp210x.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 2d2d23933ba6..5c3e8592fd22 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -417,6 +417,10 @@ static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port) /* Configure the termios structure */ cp210x_get_termios(tty, port); + /* The baud rate must be initialised on cp2104 */ + if (tty) + cp210x_change_speed(tty, port, NULL); + return usb_serial_generic_open(tty, port); } |