Re: [PATCH] hid-core: Configurable USB HID Mouse Interrupt Polling Interval

[Mikkel Krautz <krautz@gmail.com>]

Sorry, I now realise that my way of doing this only sets
hid_mousepoll_interval to the latest-plugged-in mouse's polling
interval.

How should I handle this? Just remove the line, and keep the "0 feature"?

Thanks,
Mikkel


On Mon, 7 Feb 2005 18:51:46 +0100, Mikkel Krautz <krautz@gmail.com> wrote:
> Are you talking about the following line?
> 
> +               else
> +                       hid_mousepoll_interval = interval;
> 
> If so, I put it there, to fill a tiny gap, i felt was missing.
> 
> If no parameter is passed, hid_mousepoll_interval is obviously 0.
> 
> If a user, who doesn't pass the parameter to usbhid, reads
> '/sys/module/usbhid/parameters/mousepoll', the answer would be "0",
> which is incorrect, no?
> 
> Thanks,
> Mikkel
> 
> On Mon, 7 Feb 2005 18:43:03 +0100, Vojtech Pavlik <vojtech@suse.cz> wrote:
> > On Mon, Feb 07, 2005 at 04:44:24PM +0100, Mikkel Krautz wrote:
> > > And, here's an updated version of hid-core.c:
> > >
> > > Signed-off-by: Mikkel Krautz <krautz@gmail.com>
> > > ---
> > > --- clean/drivers/usb/input/hid-core.c
> > > +++ dirty/drivers/usb/input/hid-core.c
> > > @@ -37,13 +37,20 @@
> > >   * Version Information
> > >   */
> > >
> > > -#define DRIVER_VERSION "v2.0"
> > > +#define DRIVER_VERSION "v2.01"
> > >  #define DRIVER_AUTHOR "Andreas Gal, Vojtech Pavlik"
> > >  #define DRIVER_DESC "USB HID core driver"
> > >  #define DRIVER_LICENSE "GPL"
> > >
> > >  static char *hid_types[] = {"Device", "Pointer", "Mouse", "Device", "Joystick",
> > >                               "Gamepad", "Keyboard", "Keypad", "Multi-Axis Controller"};
> > > +/*
> > > + * Module parameters.
> > > + */
> > > +
> > > +static unsigned int hid_mousepoll_interval;
> > > +module_param_named(mousepoll, hid_mousepoll_interval, uint, 0644);
> > > +MODULE_PARM_DESC(mousepoll, "Polling interval of mice");
> > >
> > >  /*
> > >   * Register a new report for a device.
> > > @@ -1695,6 +1702,12 @@
> > >               if (dev->speed == USB_SPEED_HIGH)
> > >                       interval = 1 << (interval - 1);
> > >
> > > +             /* Change the polling interval of mice. */
> > > +             if (hid->collection->usage == HID_GD_MOUSE && hid_mousepoll_interval > 0)
> > > +                     interval = hid_mousepoll_interval;
> > > +             else
> > > +                     hid_mousepoll_interval = interval;
> >
> > This line is trying to achieve what?
> >
> > > +
> > >               if (endpoint->bEndpointAddress & USB_DIR_IN) {
> > >                       if (hid->urbin)
> > >                               continue;
> > >
> > >
> >
> > --
> > Vojtech Pavlik
> > SuSE Labs, SuSE CR
> >
>