From: Rodrigo Alencar <rodrigo.alencar@analog.com>
Add human-readable labels for all AD9910 IIO channels via the read_label
callback: single_tone, parallel_port, digital_ramp_generator, ram_control,
and output_shift_keying.
Signed-off-by: Rodrigo Alencar <rodrigo.alencar@analog.com>
---
drivers/iio/frequency/ad9910.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/drivers/iio/frequency/ad9910.c b/drivers/iio/frequency/ad9910.c
index b1540b157a0e..e983614805b4 100644
--- a/drivers/iio/frequency/ad9910.c
+++ b/drivers/iio/frequency/ad9910.c
@@ -1814,10 +1814,26 @@ static const struct attribute_group ad9910_attrs_group = {
.bin_attrs = ad9910_bin_attrs,
};
+static const char * const ad9910_channel_str[] = {
+ [AD9910_CHANNEL_SINGLE_TONE] = "single_tone",
+ [AD9910_CHANNEL_PARALLEL_PORT] = "parallel_port",
+ [AD9910_CHANNEL_DRG] = "digital_ramp_generator",
+ [AD9910_CHANNEL_RAM] = "ram_control",
+ [AD9910_CHANNEL_OSK] = "output_shift_keying",
+};
+
+static int ad9910_read_label(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ char *label)
+{
+ return sprintf(label, "%s\n", ad9910_channel_str[chan->channel]);
+}
+
static const struct iio_info ad9910_info = {
.read_raw = ad9910_read_raw,
.write_raw = ad9910_write_raw,
.write_raw_get_fmt = ad9910_write_raw_get_fmt,
+ .read_label = ad9910_read_label,
.attrs = &ad9910_attrs_group,
.debugfs_reg_access = &ad9910_reg_access,
};
--
2.43.0