From 592ae0ccecfac9af8f67444cab11cbb11770f571 Mon Sep 17 00:00:00 2001 From: David Lechner Date: Tue, 16 Sep 2025 16:02:57 -0500 Subject: 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 Signed-off-by: Jonathan Cameron --- include/linux/iio/consumer.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') 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. -- cgit v1.2.3