From: Phil Reid <preid@electromag.com.au>
To: "linux-iio@vger.kernel.org" <linux-iio@vger.kernel.org>
Subject: iio: Non multiplexed ADC Data
Date: Mon, 23 Nov 2015 16:31:01 +0800 [thread overview]
Message-ID: <5652CEC5.7080804@electromag.com.au> (raw)
I'm in th eprocess of writing a driver for a custom ADC controller.
It's an FPGA based ADC controller with multiple ADC channels with a built in DMA master.
All channels share some attributes, eg Sample rate, with other per channel attributes, eg Gain.
The DMA controller de-multiplexes the ADC data by having a separate target buffer for each channel.
Look at the libiio interface this configuration doesn't seem to be catered for.
eg: iio_device_create_buffer creates a single buffer for all enabled channels to share.
The best way I can see is to create an iio device per channel and have them share a common data block.
Not sure what interesting behaviour this may cause.
Or have I missed something obvious..
--
Regards
Phil Reid
next reply other threads:[~2015-11-23 8:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-23 8:31 Phil Reid [this message]
2015-11-23 9:15 ` iio: Non multiplexed ADC Data Lars-Peter Clausen
2015-11-24 0:17 ` Phil Reid
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