linux-kernel - RE: [PATCH] staging: comedi: das1800: remove unused variable

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Message-ID: <BY1PR0101MB1063637B91DA95A4B7FE6140D09F0@BY1PR0101MB1063.prod.exchangelabs.com>
Date:	Wed, 6 Apr 2016 01:21:19 +0000
From:	Hartley Sweeten <HartleyS@...ionengravers.com>
To:	Sudip Mukherjee <sudipm.mukherjee@...il.com>,
	Ian Abbott <abbotti@....co.uk>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devel@...verdev.osuosl.org" <devel@...verdev.osuosl.org>
Subject: RE: [PATCH] staging: comedi: das1800: remove unused variable

On Tuesday, April 05, 2016 7:23 AM, Sudip Mukherjee wrote:
> The variable unipolar was never used.
>
> Signed-off-by: Sudip Mukherjee <sudip.mukherjee@...ethink.co.uk>
> ---
>
> There may be a chance that reading from DAS1800_CONTROL_C is necessary
> before reading from DAS1800_STATUS. If that is true then please discard
> this patch.

Actually the driver has a bug here.

The analog input samples should  be munged if the inputs are configured for
bipolar mode.

I have a series almost ready that cleans up this driver and fixes the bug.

Thanks,
Hartley