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From: Andi Shyti <andi.shyti@samsung.com>
To: Sean Young <sean@mess.org>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>,
	linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
	Andi Shyti <andi@etezian.org>
Subject: Re: [RFC 5/7] [media] ir-lirc-codec: do not handle any buffer for raw transmitters
Date: Thu, 21 Jul 2016 09:48:12 +0900	[thread overview]
Message-ID: <20160721004812.GF23521@samsunx.samsung> (raw)
In-Reply-To: <20160719221610.GC24697@gofer.mess.org>

Hi Sean,

> > Raw transmitters receive the data which need to be sent to
> > receivers from userspace as stream of bits, they don't require
> > any handling from the lirc framework.
> 
> No drivers of type RC_DRIVER_IR_RAW_TX should handle tx just like any
> other device, so data should be provided as an array of u32 alternating
> pulse-space. If your device does not handle input like that then convert
> it into that format in the driver. Every other driver has to do some
> sort of conversion of that kind.

I don't see anything wrong here, that's how it works for example
in Tizen or in Android for the boards I'm on: userspace sends a
stream of bits that are then submitted to the IR as they are.

If I change it to only pulse-space domain, then I wouldn't
provide support for those platforms. Eventually I can add a new
protocol.

Andi

  reply	other threads:[~2016-07-21  0:48 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-19 15:56 [RFC 0/7] Add support for IR transmitters Andi Shyti
2016-07-19 15:56 ` [RFC 1/7] [media] rc-main: assign driver type during allocation Andi Shyti
2016-07-19 22:04   ` Sean Young
2016-07-21  0:19     ` Andi Shyti
2016-07-19 15:56 ` [RFC 2/7] [media] rc-main: split setup and unregister functions Andi Shyti
2016-07-19 15:56 ` [RFC 3/7] [media] rc-core: add support for IR raw transmitters Andi Shyti
2016-07-19 22:10   ` Sean Young
2016-07-21  0:44     ` Andi Shyti
2016-07-19 15:56 ` [RFC 4/7] [media] rc-ir-raw: do not generate any receiving thread for " Andi Shyti
2016-07-19 15:56 ` [RFC 5/7] [media] ir-lirc-codec: do not handle any buffer " Andi Shyti
2016-07-19 22:16   ` Sean Young
2016-07-21  0:48     ` Andi Shyti [this message]
2016-07-21 14:43       ` Sean Young
2016-07-19 15:56 ` [RFC 6/7] Documentation: bindings: add documentation for ir-spi device driver Andi Shyti
2016-07-19 15:56 ` [RFC 7/7] [media] rc: add support for IR LEDs driven through SPI Andi Shyti
2016-07-19 23:11   ` Sean Young
2016-07-21  1:09     ` Andi Shyti
2016-07-21 10:22       ` Sean Young
2016-07-21 14:57         ` Andi Shyti

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