From: Jonathan Cameron <jic23@kernel.org>
To: Lars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald <pmeerw@pmeerw.net>, linux-iio@vger.kernel.org
Subject: Re: [PATCH 04/27] iio: Add iio_push_buffers_with_timestamp() helper
Date: Mon, 16 Sep 2013 19:35:40 +0100 [thread overview]
Message-ID: <52374F7C.5000308@kernel.org> (raw)
In-Reply-To: <5236BEF9.2020002@metafoo.de>
On 09/16/13 09:19, Lars-Peter Clausen wrote:
> On 09/16/2013 09:58 AM, Peter Meerwald wrote:
>>
>>> Interesting. Whilst this obviouslby results in the removal of a lot of
>>> repeated code, I am nervous about introducing the 'hidden' requirement
>>> that the data buffer passed in must be bigger than is 'apparently' used
>>> in the code calling this. I'm not sure what the right answer is though.
>>
>> maybe add some iio magic that always allocs the buffer dynamically based
>> on the channel definition/scan_bytes
>
> A lot of drivers already do something like priv_data->buffer =
> kzalloc(indio_dev->scan_bytes, ...) in their update_scan_mode callback.
> Maybe we can add a transfer_buffer field to the iio_dev struct and have a
> function that can be used as a default update_scan_mode callback that
> allocates the buffer.
That would probably make sense and remove quite a lot of my concern about these.
Can happen as a later patch set though.
Jonathan
next prev parent reply other threads:[~2013-09-16 17:35 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-15 16:50 [PATCH 01/27] iio: iio_push_to_buffers(): Change type of 'data' to const void * Lars-Peter Clausen
2013-09-15 16:50 ` [PATCH 02/27] iio: Remove unnecessary casts for iio_push_to_buffers() Lars-Peter Clausen
2013-09-15 18:05 ` Jonathan Cameron
2013-09-15 16:50 ` [PATCH 03/27] staging:iio: " Lars-Peter Clausen
2013-09-15 18:06 ` Jonathan Cameron
2013-09-15 16:50 ` [PATCH 04/27] iio: Add iio_push_buffers_with_timestamp() helper Lars-Peter Clausen
2013-09-15 17:44 ` Peter Meerwald
2013-09-16 7:52 ` Jonathan Cameron
2013-09-16 7:58 ` Peter Meerwald
2013-09-16 8:19 ` Lars-Peter Clausen
2013-09-16 18:35 ` Jonathan Cameron [this message]
2013-09-16 8:19 ` Lars-Peter Clausen
2013-09-16 18:37 ` Jonathan Cameron
2013-09-16 20:42 ` Lars-Peter Clausen
2013-09-15 16:50 ` [PATCH 05/27] iio:bma180: Use iio_push_buffers_with_timestamp() Lars-Peter Clausen
2013-09-15 16:50 ` [PATCH 06/27] iio:ad7266: Use iio_push_to_buffers_with_timestamp() Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 07/27] iio:ad7298: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 08/27] iio:ad7476: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 09/27] iio:ad7887: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 10/27] iio:ad7923: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 11/27] iio:ad_sigma_delta: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 12/27] iio:at91_adc: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 13/27] iio:max1363: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 14/27] iio:st_sensors: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 15/27] iio:itg3200: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 16/27] iio:adis16400: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 17/27] iio:adis_lib: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 18/27] iio:mpu6050: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 19/27] iio:adjd_s311: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 20/27] iio:tcs3472: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 21/27] iio:gp2ap020a00f: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 22/27] staging:iio:lis3l02dq: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 23/27] staging:iio:ad7606: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 24/27] staging:iio:ad799x: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 25/27] staging:iio:mxs-lradc: " Lars-Peter Clausen
2013-09-16 13:53 ` Marek Vasut
2013-09-16 16:54 ` Lars-Peter Clausen
2013-09-16 17:08 ` Marek Vasut
2013-09-15 16:51 ` [PATCH 26/27] staging:iio:dummy: " Lars-Peter Clausen
2013-09-15 16:51 ` [PATCH 27/27] staging:iio:ade7758: " Lars-Peter Clausen
2013-09-15 18:04 ` [PATCH 01/27] iio: iio_push_to_buffers(): Change type of 'data' to const void * Jonathan Cameron
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