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linux/Documentation/ABI/testing/sysfs-bus-iio-frequency-ad9523

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iio: frequency: New driver for AD9523 SPI Low Jitter Clock Generator Changes since V1: Apply Jonathan's review feedback: Revise device status attribute names, and split documentation into two sections. Add additional comments, and fix indention issues. Remove pointless zero initializations. Revise return value handling. Simplify some code sections. Split store_eeprom and sync handling into separate functions. Use strtobool where applicable. Document platform data structures using kernel-doc style. Use dev_to_iio_dev write_raw IIO_CHAN_INFO_FREQUENCY: Reject values <= 0 Make patch target drivers/iio Changes since V2: Use for_each_clear_bit() and __set_bit() where applicable. Add descriptive comment. Avoid temporary for struct regulator. spi_device_id name use ad9523-1, ad9523 will be added later. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-05-29 18:41:19 +08:00
What: /sys/bus/iio/devices/iio:deviceX/pll2_feedback_clk_present
What: /sys/bus/iio/devices/iio:deviceX/pll2_reference_clk_present
What: /sys/bus/iio/devices/iio:deviceX/pll1_reference_clk_a_present
What: /sys/bus/iio/devices/iio:deviceX/pll1_reference_clk_b_present
What: /sys/bus/iio/devices/iio:deviceX/pll1_reference_clk_test_present
What: /sys/bus/iio/devices/iio:deviceX/vcxo_clk_present
KernelVersion: 3.4.0
Contact: linux-iio@vger.kernel.org
Description:
Reading returns either '1' or '0'.
'1' means that the clock in question is present.
'0' means that the clock is missing.
What: /sys/bus/iio/devices/iio:deviceX/pllY_locked
KernelVersion: 3.4.0
Contact: linux-iio@vger.kernel.org
Description:
Reading returns either '1' or '0'. '1' means that the
pllY is locked.
What: /sys/bus/iio/devices/iio:deviceX/sync_dividers
KernelVersion: 3.4.0
Contact: linux-iio@vger.kernel.org
Description:
Writing '1' triggers the clock distribution synchronization
functionality. All dividers are reset and the channels start
with their predefined phase offsets (out_altvoltageY_phase).
Writing this file has the effect as driving the external
/SYNC pin low.