On Sun, Mar 18, 2012 at 01:25:30PM +0400, tamerlan311 wrote: > 2012/3/18 Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> > > On Sat, Mar 17, 2012 at 08:07:07PM +0400, Aleksey Babahin wrote: > > Without this declaration we can`t use interrupt_out_endpointAddress. > > --- > > drivers/usb/serial/metro-usb.c | 9 +++++++++ > > 1 files changed, 9 insertions(+), 0 deletions(-) > > > > diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/ > metro-usb.c > > index 08d16e8..6dba779 100644 > > --- a/drivers/usb/serial/metro-usb.c > > +++ b/drivers/usb/serial/metro-usb.c > > @@ -136,6 +136,14 @@ exit: > > __func__, result); > > } > > > > +static void metrousb_write_int_callback (struct urb *urb) > > +{ > > + struct usb_serial_port *port = urb->context; > > + > > + dev_warn(&port->dev, "%s not implemented yet.\n" > > + ,__FUNCTION__); > > +} > > So you enable it, and then complain to the user that it's broken? That > doesn't make sense... > > > This function is never called at now. Because we don`t send much data to > device. > > Only one byte is sent to device via usb_interrupt_msg(), which does not require > callback function. > But without declaration of .write_int_callback in usb_serial_driver struct, the > usb_serial_core subsystem doesn`t initialize endpoint address for the interrupt > out pipe (interrupt_out_endpointAddress). This endpoint is necessary for > sending data via usb_interrupt_msg() function and i don`t know other way to get > it. Ah, ok, then explain this in the patch submission please, that is a reason to accept this. Care to redo this series and resend it so I can apply them? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html