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Commit c4425c8f authored by Frank Praznik's avatar Frank Praznik Committed by Jiri Kosina
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HID: sony: Update copyright and add Dualshock 4 rate control note 



Update the copyright notice with the current year and add a note
about values for controlling the Dualshock 4 reporting rate.

Processing reports at the default full rate of 1000hz can be too
demanding for some low-power embedded processors so noting
alternate values for people working with this hardware can be useful.

Thanks to Rostislav Pehlivanov for finding these values.

Signed-off-by: default avatarFrank Praznik <frank.praznik@gmail.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent 2a242932

drivers/hid/hid-sony.c

+12 −1
Original line number Diff line number Diff line
@@ -8,7 +8,7 @@ 
 *  Copyright (c) 2012 David Dillow <dave@thedillows.org>

 *  Copyright (c) 2006-2013 Jiri Kosina

 *  Copyright (c) 2013 Colin Leitner <colin.leitner@gmail.com>

 *  Copyright (c) 2014 Frank Praznik <frank.praznik@gmail.com>

 *  Copyright (c) 2014-2016 Frank Praznik <frank.praznik@gmail.com>

 */



/*
@@ -1879,6 +1879,17 @@ static void dualshock4_send_output_report(struct sony_sc *sc) 
	u8 *buf = sc->output_report_dmabuf;

	int offset;



	/*

	 * NOTE: The buf[1] field of the Bluetooth report controls

	 * the Dualshock 4 reporting rate.

	 *

	 * Known values include:

	 *

	 * 0x80 - 1000hz (full speed)

	 * 0xA0 - 31hz

	 * 0xB0 - 20hz

	 * 0xD0 - 66hz

	 */

	if (sc->quirks & DUALSHOCK4_CONTROLLER_USB) {

		memset(buf, 0, DS4_REPORT_0x05_SIZE);

		buf[0] = 0x05;