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USB: fix interaction between different interfaces in an "Option" usb device

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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) {