From: Peter Meerwald <pmeerw@pmeerw.net>
To: linux-iio@vger.kernel.org
Cc: Peter Meerwald <pmeerw@pmeerw.net>
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 [thread overview]
Message-ID: <1389391163-9622-1-git-send-email-pmeerw@pmeerw.net> (raw)
individual reads are not permitted concurrently with buffered reads
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
---
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
next reply other threads:[~2014-01-10 21:59 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-10 21:59 Peter Meerwald [this message]
2014-01-10 21:59 ` [PATCH 2/5] iio:magnetometer:mag3110: Fix output of decimal digits in show_int_plus_micros() Peter Meerwald
2014-01-11 12:14 ` Jonathan Cameron
2014-01-10 21:59 ` [PATCH 3/5] iio:magnetometer:mag3110: Scale factor missing for temperature Peter Meerwald
2014-01-11 16:08 ` Jonathan Cameron
2014-01-10 21:59 ` [PATCH 4/5] iio:magnetometer:mag3110: Fix initialization of ctrl_reg1 Peter Meerwald
2014-01-11 16:09 ` Jonathan Cameron
2014-01-10 21:59 ` [PATCH 5/5] iio:magnetometer:mag3110: Enable user offset calibration Peter Meerwald
2014-01-11 16:10 ` Jonathan Cameron
2014-01-11 12:07 ` [PATCH 1/5] iio:magnetometer:mag3110: Report busy in _read_raw() / write_raw() when buffer is enabled Jonathan Cameron
2014-01-11 12:13 ` Jonathan Cameron
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