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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>
This commit is contained in:
Miguel Angel Alvarez 2006-12-14 19:49:35 +01:00 committed by Greg Kroah-Hartman
parent 25c77b3294
commit 8c1527132c
1 changed files with 3 additions and 0 deletions
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3
drivers/usb/serial/option.c
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@ -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) {