From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ns.pmeerw.net ([87.118.82.44]:58101 "EHLO pmeerw.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752751AbaAJV7Z (ORCPT ); Fri, 10 Jan 2014 16:59:25 -0500 From: Peter Meerwald To: linux-iio@vger.kernel.org Cc: Peter Meerwald Subject: [PATCH 1/5] iio:magnetometer:mag3110: Report busy in _read_raw() / write_raw() when buffer is enabled Date: Fri, 10 Jan 2014 22:59:19 +0100 Message-Id: <1389391163-9622-1-git-send-email-pmeerw@pmeerw.net> Sender: linux-iio-owner@vger.kernel.org List-Id: linux-iio@vger.kernel.org individual reads are not permitted concurrently with buffered reads Signed-off-by: Peter Meerwald --- drivers/iio/magnetometer/mag3110.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/iio/magnetometer/mag3110.c b/drivers/iio/magnetometer/mag3110.c index 4b65b6d..b88cb44 100644 --- a/drivers/iio/magnetometer/mag3110.c +++ b/drivers/iio/magnetometer/mag3110.c @@ -154,6 +154,9 @@ static int mag3110_read_raw(struct iio_dev *indio_dev, switch (mask) { case IIO_CHAN_INFO_RAW: + if (iio_buffer_enabled(indio_dev)) + return -EBUSY; + switch (chan->type) { case IIO_MAGN: /* in 0.1 uT / LSB */ ret = mag3110_read(data, buffer); @@ -199,6 +202,9 @@ static int mag3110_write_raw(struct iio_dev *indio_dev, struct mag3110_data *data = iio_priv(indio_dev); int rate; + if (iio_buffer_enabled(indio_dev)) + return -EBUSY; + switch (mask) { case IIO_CHAN_INFO_SAMP_FREQ: rate = mag3110_get_samp_freq_index(data, val, val2); -- 1.8.3.2