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From: "Zubair Lutfullah :" <zubair.lutfullah@gmail.com>
To: linux-iio@vger.kernel.org
Subject: Cant read more than 2 bytes from triggered buffer 3.10
Date: Sun, 21 Jul 2013 16:24:32 +0100	[thread overview]
Message-ID: <20130721152431.GA22495@gmail.com> (raw)

I am running kernel version with the tag 3.10.

I am trying to read data from a triggered buffer I created for the ti-adc
driver. Just wanted to read a counter back using generic_buffer.c
and sysfs triggers.

But for some reason, I can only read 2 samples using generic_buffer.c

I tried a dozen printfs and lots of hours.
indio_dev->scan_bytes seems fixed at 8 or 4.
indio_dev->masklength is similar 8 or 4.

I use generic_buffer -n TI-am335x-adc -t sysfstrig1 -l 1024.

but only one sample output or two.

I enabled the simple dummy buffer and tried triggering it too.
Only 1 sample..
no matter the buffer length.

Have spent a couple of hours messing over this. But I can't get my counter output from the driver.

If anyone wants to see the modified am335x adc driver

pastebin(.)com/1Zrw3KTt

Hope somebody can point out whats wrong..

Thanks
Zubair Lutfullah

                 reply	other threads:[~2013-07-21 15:24 UTC|newest]

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