From: lirc@bartelmus.de (Christoph Bartelmus)
To: maximlevitsky@gmail.com
Cc: linux-input@vger.kernel.org, linux-media@vger.kernel.org,
lirc-list@lists.sourceforge.net, mchehab@redhat.com
Subject: Re: [PATCH 10/13] IR: extend interfaces to support more device settings LIRC: add new IOCTL that enables learning mode (wide band receiver)
Date: 31 Jul 2010 10:10:00 +0200 [thread overview]
Message-ID: <BTtO1S1ZjFB@christoph> (raw)
In-Reply-To: <1280527264.3159.10.camel@maxim-laptop>
Hi Maxim,
on 31 Jul 10 at 01:01, Maxim Levitsky wrote:
> On Fri, 2010-07-30 at 23:22 +0200, Christoph Bartelmus wrote:
[...]
>>> +#define LIRC_SET_WIDEBAND_RECEIVER _IOW('i', 0x00000023, __u32)
>>
>> If you really want this new ioctl, then it should be clarified how it
>> behaves in relation to LIRC_SET_MEASURE_CARRIER_MODE.
> In my opinion, I won't need the LIRC_SET_MEASURE_CARRIER_MODE,
> I would just optionally turn that on in learning mode.
> You disagree, and since that is not important (besides TX and learning
> features are present only at fraction of ENE devices. The only user I
> did the debugging with, doesn't seem to want to help debug that code
> anymore...)
>
> But anyway, in current state I want these features to be independent.
> Driver will enable learning mode if it have to.
Please avoid the term "learning mode" as to you it probably means
something different than to me.
>
> I'll add the documentation.
>>
>> Do you have to enable the wide-band receiver explicitly before you can
>> enable carrier reports or does enabling carrier reports implicitly switch
>> to the wide-band receiver?
> I would implicitly switch the learning mode on, untill user turns off
> the carrier reports.
You mean that you'll implicitly switch on the wide-band receiver. Ok.
>>
>> What happens if carrier mode is enabled and you explicitly turn off the
>> wide-band receiver?
> Wouldn't it be better to have one ioctl for both after all?
There may be hardware that allows carrier measurement but does not have a
wide-band receiver. And there may be hardware that does have a wide-band
receiver but does not allow carrier measurement. irrecord needs to be able
to distinguish these cases, so we need separate ioctls.
I'd say: carrier reports may switch on the wide-band reciever implicitly.
In that case the wide-band receiver cannot be switched off explicitly
until carrier reports are disabled again. It just needs to be documented.
>>
>> And while we're at interface stuff:
>> Do we really need LIRC_SETUP_START and LIRC_SETUP_END? It is only used
>> once in lircd during startup.
> I don't think so.
>
Christoph
next prev parent reply other threads:[~2010-07-31 8:13 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-30 11:38 [PATCH 0/9 v3] IR: few fixes, additions and ENE driver Maxim Levitsky
2010-07-30 11:38 ` [PATCH 01/13] IR: Kconfig fixes Maxim Levitsky
2010-07-30 11:38 ` [PATCH 02/13] IR: minor fixes: Maxim Levitsky
2010-07-30 11:38 ` [PATCH 03/13] IR: replace spinlock with mutex Maxim Levitsky
2010-07-30 11:38 ` [PATCH 04/13] IR: fix locking in ir_raw_event_work Maxim Levitsky
2010-07-30 11:38 ` [PATCH 05/13] IR: JVC: make repeat work Maxim Levitsky
2010-07-30 11:38 ` [PATCH 06/13] IR: nec decoder: fix repeat Maxim Levitsky
2010-07-30 19:36 ` Mauro Carvalho Chehab
2010-07-30 19:54 ` Maxim Levitsky
2010-07-30 11:38 ` [PATCH 07/13] IR: NECX: support repeat Maxim Levitsky
2010-07-30 11:38 ` [PATCH 08/13] IR: Allow not to compile keymaps in Maxim Levitsky
2010-07-30 11:38 ` [PATCH 09/13] IR: add helper function for hardware with small o/b buffer Maxim Levitsky
2010-07-30 11:38 ` [PATCH 10/13] IR: extend interfaces to support more device settings LIRC: add new IOCTL that enables learning mode (wide band receiver) Maxim Levitsky
2010-07-30 21:22 ` Christoph Bartelmus
2010-07-30 22:01 ` Maxim Levitsky
2010-07-31 8:10 ` Christoph Bartelmus [this message]
2010-07-31 9:35 ` Maxim Levitsky
2010-07-30 11:38 ` [PATCH 11/13] IR: report unknown scancodes the in-kernel decoders found Maxim Levitsky
2010-07-30 11:38 ` [PATCH 12/13] STAGING: remove lirc_ene0100 driver Maxim Levitsky
2010-07-30 11:38 ` [PATCH 13/13] IR: Port ene driver to new IR subsystem and enable it Maxim Levitsky
2010-07-30 19:33 ` [PATCH 0/9 v3] IR: few fixes, additions and ENE driver Mauro Carvalho Chehab
2010-07-30 19:52 ` Maxim Levitsky
-- strict thread matches above, loose matches on Subject: below --
2010-07-30 2:17 [PATCH 0/9 v2] " Maxim Levitsky
2010-07-30 2:17 ` [PATCH 10/13] IR: extend interfaces to support more device settings LIRC: add new IOCTL that enables learning mode (wide band receiver) Maxim Levitsky
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