linux-kernel - Re: [PATCH 1/2] HID: huion: enable button mode reporting

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Message-ID: <20150218202523.GE5928@mail.corp.redhat.com>
Date:	Wed, 18 Feb 2015 15:25:23 -0500
From:	Benjamin Tissoires <benjamin.tissoires@...hat.com>
To:	Nikolai Kondrashov <spbnick@...il.com>
Cc:	Jiri Kosina <jkosina@...e.cz>,
	Peter Hutterer <peter.hutterer@...-t.net>,
	linux-input@...r.kernel.org, linux-kernel@...r.kernel.org,
	DIGImend-devel <DIGImend-devel@...ts.sourceforge.net>
Subject: Re: [PATCH 1/2] HID: huion: enable button mode reporting

On Feb 18 2015 or thereabouts, Nikolai Kondrashov wrote:
> On 02/18/2015 12:54 AM, Benjamin Tissoires wrote:
> >@@ -81,6 +84,31 @@ static const __u8 huion_tablet_rdesc_template[] = {
> >  	HUION_PH(PRESSURE_LM),  /*          Logical Maximum (PLACEHOLDER),  */
> >  	0x81, 0x02,             /*          Input (Variable),               */
> >  	0xC0,                   /*      End Collection,                     */
> >+	0x05, 0x01,             /*      Usage Page (Desktop)                */
> >+	0x09, 0x07,             /*      Usage (Keypad)                      */
> >+	0xa1, 0x01,             /*      Collection (Application)            */
> >+	0x85, 0x08,             /*          Report ID (8)                   */
> 
> Oh, and it's probably safer to have a higher-number report ID in case some
> tablets use it for something else.
>

makes sense. Will amend.

Cheers,
Benjamin
 
> >+	0x05, 0x0d,             /*          Usage Page (Digitizers)         */
> >+	0x09, 0x22,             /*          Usage (Finger)                  */
> >+	0xa0,                   /*          Collection (Physical)           */
> >+	0x14,                   /*              Logical Minimum (0)         */
> >+	0x25, 0x01,             /*              Logical Maximum (1)         */
> >+	0x75, 0x08,             /*              Report Size (8)             */
> >+	0x95, 0x03,             /*              Report Count (3)            */
> >+	0x81, 0x03,             /*              Input (Cnst,Var,Abs)        */
> >+	0x05, 0x09,             /*              Usage Page (Button)         */
> >+	0x19, 0x01,             /*              Usage Minimum (1)           */
> >+	0x29, 0x08,             /*              Usage Maximum (8)           */
> >+	0x14,                   /*              Logical Minimum (0)         */
> >+	0x25, 0x01,             /*              Logical Maximum (1)         */
> >+	0x75, 0x01,             /*              Report Size (1)             */
> >+	0x95, 0x08,             /*              Report Count (8)            */
> >+	0x81, 0x02,             /*              Input (Data,Var,Abs)        */
> >+	0x75, 0x08,             /*              Report Size (8)             */
> >+	0x95, 0x03,             /*              Report Count (3)            */
> >+	0x81, 0x03,             /*              Input (Cnst,Var,Abs)        */
> >+	0xc0,                   /*          End Collection                  */
> >+	0xc0,                   /*      End Collection                      */
> >  	0xC0                    /*  End Collection                          */
> >  };
> 
> Nick
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