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Date: Wed, 07 May 2014 15:57:11 +0300
From: Antti Palosaari <crope@iki.fi>
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To: Hans Verkuil <hverkuil@xs4all.nl>,
	Mauro Carvalho Chehab <m.chehab@samsung.com>,
	LMML <linux-media@vger.kernel.org>
Subject: V4L control units
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Moikka
What is preferred way implement controls that could have some known unit 
or unknown unit? For example for gain controls, I would like to offer 
gain in unit of dB (decibel) and also some unknown driver specific unit. 
Should I two controls, one for each unit?

Like that

V4L2_CID_RF_TUNER_LNA_GAIN_AUTO
V4L2_CID_RF_TUNER_LNA_GAIN
V4L2_CID_RF_TUNER_LNA_GAIN_dB


regards
Antti

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