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| author | Miguel Angel Alvarez <ma.alvarez@ziv.es> | 2006-12-14 19:49:35 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-01-05 12:19:08 -0800 |
| commit | 8c1527132c25512563b197b35453c7da22b4d699 (patch) | |
| tree | 53e90cf5ca1056df90e4d99e1a9601a30c490e62 | |
| parent | 25c77b329467d563ec1fa5c3efab0b13996ce810 (diff) | |
| download | linux-3.10-8c1527132c25512563b197b35453c7da22b4d699.tar.gz linux-3.10-8c1527132c25512563b197b35453c7da22b4d699.tar.bz2 linux-3.10-8c1527132c25512563b197b35453c7da22b4d699.zip | |
USB: fix interaction between different interfaces in an "Option" usb device
Just the serial port in the first interface should control DTR and RTS
lines. This way, the closing of the rest of the ports does not produce a=
hangup in the communication.
Signed-off-by: Miguel Angel Alvarez <ma.alvarez@ziv.es>
Signed-off-by: Matthias Urlichs <matthias@urlichs.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/usb/serial/option.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 819266b7e2f..5ca04e82ea1 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -625,6 +625,9 @@ static int option_send_setup(struct usb_serial_port *port) dbg("%s", __FUNCTION__); + if (port->number != 0) + return 0; + portdata = usb_get_serial_port_data(port); if (port->tty) { |