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Commit 89c2e228 authored by Johan Fjeldtvedt's avatar Johan Fjeldtvedt Committed by Mauro Carvalho Chehab
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[media] pulse8-cec: add notes about behavior in autonomous mode 



The pulse8 dongle has some quirky behaviors when in autonomous mode.
Document these.

Signed-off-by: default avatarJohan Fjeldtvedt <jaffe1@gmail.com>
Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent 05f3e58b

drivers/staging/media/pulse8-cec/pulse8-cec.c

+23 −0
Original line number Original line Diff line number Diff line
@@ -10,6 +10,29 @@ 
 * this archive for more details.

 * this archive for more details.

 */

 */





/*

 * Notes:

 *

 * - Devices with firmware version < 2 do not store their configuration in

 *   EEPROM.

 *

 * - In autonomous mode, only messages from a TV will be acknowledged, even

 *   polling messages. Upon receiving a message from a TV, the dongle will

 *   respond to messages from any logical address.

 *

 * - In autonomous mode, the dongle will by default reply Feature Abort

 *   [Unrecognized Opcode] when it receives Give Device Vendor ID. It will

 *   however observe vendor ID's reported by other devices and possibly

 *   alter this behavior. When TV's (and TV's only) report that their vendor ID

 *   is LG (0x00e091), the dongle will itself reply that it has the same vendor

 *   ID, and it will respond to at least one vendor specific command.

 *

 * - In autonomous mode, the dongle is known to attempt wakeup if it receives

 *   <User Control Pressed> ["Power On"], ["Power] or ["Power Toggle"], or if it

 *   receives <Set Stream Path> with its own physical address. It also does this

 *   if it receives <Vendor Specific Command> [0x03 0x00] from an LG TV.

 */



#include <linux/completion.h>

#include <linux/completion.h>

#include <linux/init.h>

#include <linux/init.h>

#include <linux/interrupt.h>

#include <linux/interrupt.h>