diff options
| author | Chris Collins <chris@ursys.com.au> | 2008-04-10 10:15:53 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-04-25 06:16:51 +0200 |
| commit | 5f760040bcb4cc0498d4c662c4ea305290198ef3 (patch) | |
| tree | b47db322de6c6903b5201d7e6645a6bc1c54f911 /drivers | |
| parent | USB: add Documentation about usb_anchor (diff) | |
| download | linux-5f760040bcb4cc0498d4c662c4ea305290198ef3.tar.xz linux-5f760040bcb4cc0498d4c662c4ea305290198ef3.zip | |
USB: option.c: correct DTR behaviour
Setting DTR et al. should work for all interfaces
if you actually pass the interface number. :-P
This should help with devices that have important pseudo-serial ports
that aren't on the first interface in the device.
Signed-off-by: Chris Collins <chris@ursys.com.au>
Signed-off-by: Matthias Urlichs <matthias@urlichs.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/serial/option.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 0e7eeb2820e2..130aa96746f0 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -28,7 +28,7 @@ device features. */ -#define DRIVER_VERSION "v0.7.1" +#define DRIVER_VERSION "v0.7.2" #define DRIVER_AUTHOR "Matthias Urlichs <smurf@smurf.noris.de>" #define DRIVER_DESC "USB Driver for GSM modems" @@ -824,16 +824,19 @@ static void option_setup_urbs(struct usb_serial *serial) } } + +/** send RTS/DTR state to the port. + * + * This is exactly the same as SET_CONTROL_LINE_STATE from the PSTN + * CDC. +*/ static int option_send_setup(struct usb_serial_port *port) { struct usb_serial *serial = port->serial; struct option_port_private *portdata; - + int ifNum = serial->interface->cur_altsetting->desc.bInterfaceNumber; dbg("%s", __FUNCTION__); - if (port->number != 0) - return 0; - portdata = usb_get_serial_port_data(port); if (port->tty) { @@ -845,7 +848,7 @@ static int option_send_setup(struct usb_serial_port *port) return usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0), - 0x22,0x21,val,0,NULL,0,USB_CTRL_SET_TIMEOUT); + 0x22,0x21,val,ifNum,NULL,0,USB_CTRL_SET_TIMEOUT); } return 0; |