From b2b19f8b08b97dd255424dfa9181afdb030befeb Mon Sep 17 00:00:00 2001 From: Rodrigo Alencar Date: Wed, 29 Jul 2026 09:25:31 +0100 Subject: [PATCH] iio: add IIO_FREQUENCY channel type Add IIO_FREQUENCY channel type to support Direct Digital Synthesizer (DDS) devices that handles frequency values written directly to its buffered interface. Signed-off-by: Rodrigo Alencar Signed-off-by: Jonathan Cameron --- drivers/iio/industrialio-core.c | 1 + include/uapi/linux/iio/types.h | 1 + tools/iio/iio_event_monitor.c | 2 ++ 3 files changed, 4 insertions(+) diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 819a864d1136..da80b5d88a75 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -100,6 +100,7 @@ static const char * const iio_chan_type_name_spec[] = { [IIO_ALTCURRENT] = "altcurrent", [IIO_COVERAGE] = "coverage", [IIO_VOLUMEFLOW] = "volumeflow", + [IIO_FREQUENCY] = "frequency", }; static const char * const iio_modifier_names[] = { diff --git a/include/uapi/linux/iio/types.h b/include/uapi/linux/iio/types.h index d0fb714ca0fd..d602b40f14d0 100644 --- a/include/uapi/linux/iio/types.h +++ b/include/uapi/linux/iio/types.h @@ -55,6 +55,7 @@ enum iio_chan_type { IIO_ALTCURRENT, IIO_COVERAGE, IIO_VOLUMEFLOW, + IIO_FREQUENCY, }; enum iio_modifier { diff --git a/tools/iio/iio_event_monitor.c b/tools/iio/iio_event_monitor.c index b5c5479b9d78..284c1fa067bf 100644 --- a/tools/iio/iio_event_monitor.c +++ b/tools/iio/iio_event_monitor.c @@ -67,6 +67,7 @@ static const char * const iio_chan_type_name_spec[] = { [IIO_ALTCURRENT] = "altcurrent", [IIO_COVERAGE] = "coverage", [IIO_VOLUMEFLOW] = "volumeflow", + [IIO_FREQUENCY] = "frequency", }; static const char * const iio_ev_type_text[] = { @@ -198,6 +199,7 @@ static bool event_is_known(struct iio_event_data *event) case IIO_ALTCURRENT: case IIO_COVERAGE: case IIO_VOLUMEFLOW: + case IIO_FREQUENCY: break; default: return false;