Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=73f593081911b1be0d8d3962ecedd635c1e27179
Commit: 73f593081911b1be0d8d3962ecedd635c1e27179
Parent: 7cc7ee28263e89793ae4d21e6e0102404c9a037b
Author: Alan Cox <[EMAIL PROTECTED]>
AuthorDate: Thu Oct 18 01:24:18 2007 -0700
Committer: Greg Kroah-Hartman <[EMAIL PROTECTED]>
CommitDate: Thu Oct 25 12:18:40 2007 -0700
USB: ch341: fix termios handling
The ch341 currently doesn't support most of the hardware setting. So to
keep
the termios data right we propogate the old termios hardware values back
then
encode the speed.
Signed-off-by: Alan Cox <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
drivers/usb/serial/ch341.c | 8 +++++---
1 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 6b252ce..42582d4 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -272,9 +272,6 @@ static void ch341_set_termios(struct usb_serial_port *port,
dbg("ch341_set_termios()");
- if (!tty || !tty->termios)
- return;
-
baud_rate = tty_get_baud_rate(tty);
switch (baud_rate) {
@@ -299,6 +296,11 @@ static void ch341_set_termios(struct usb_serial_port *port,
* (cflag & PARENB) : parity {NONE, EVEN, ODD}
* (cflag & CSTOPB) : stop bits [1, 2]
*/
+
+ /* Copy back the old hardware settings */
+ tty_termios_copy_hw(tty->termios, old_termios);
+ /* And re-encode with the new baud */
+ tty_encode_baud_rate(tty, baud_rate, baud_rate);
}
static struct usb_driver ch341_driver = {
-
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