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authorDavid Lechner <dlechner@baylibre.com>2025-09-16 16:02:57 -0500
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2025-10-13 08:37:24 +0100
commit592ae0ccecfac9af8f67444cab11cbb11770f571 (patch)
tree1185e3869b2021cb4597965dfb7ecebe02c78f59 /include/linux/iio
parent748ed9fc8596015e7e136877465919b89c7d08d6 (diff)
iio: buffer: document that buffer callback must be context safe
Document that the callback registered with iio_channel_get_all_cb() must be safe to call from any context since it is called from by iio_push_to_buffer() which can be called in any context. Signed-off-by: David Lechner <dlechner@baylibre.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'include/linux/iio')
-rw-r--r--include/linux/iio/consumer.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/iio/consumer.h b/include/linux/iio/consumer.h
index a38b277c2c02..5039558267e4 100644
--- a/include/linux/iio/consumer.h
+++ b/include/linux/iio/consumer.h
@@ -131,7 +131,8 @@ struct iio_cb_buffer;
/**
* iio_channel_get_all_cb() - register callback for triggered capture
* @dev: Pointer to client device.
- * @cb: Callback function.
+ * @cb: Callback function. Must be safe to call from any context
+ * (e.g. must not sleep).
* @private: Private data passed to callback.
*
* NB right now we have no ability to mux data from multiple devices.