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iio: documentation: Add out_altvoltage and friends 

Continuous frequency/clock generating devices, such as DDSs or PLLs
should use out_altvoltage.

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>
hifive-unleashed-5.1
Michael Hennerich 2012-05-21 14:30:31 +02:00 committed by Greg Kroah-Hartman
parent f8f5701bda
commit d802bf6f09
1 changed files with 31 additions and 0 deletions
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31
Documentation/ABI/testing/sysfs-bus-iio
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@ -219,6 +219,7 @@ What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale
What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale
What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale
What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale
What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale
What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale
What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale
@ -273,6 +274,7 @@ What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available
What: /sys/.../iio:deviceX/in_voltageX_scale_available What: /sys/.../iio:deviceX/in_voltageX_scale_available
What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available
What: /sys/.../iio:deviceX/out_voltageX_scale_available What: /sys/.../iio:deviceX/out_voltageX_scale_available
What: /sys/.../iio:deviceX/out_altvoltageX_scale_available
What: /sys/.../iio:deviceX/in_capacitance_scale_available What: /sys/.../iio:deviceX/in_capacitance_scale_available
KernelVersion: 2.635 KernelVersion: 2.635
Contact: linux-iio@vger.kernel.org Contact: linux-iio@vger.kernel.org
@ -298,14 +300,19 @@ Description:
gives the 3dB frequency of the filter in Hz. gives the 3dB frequency of the filter in Hz.
What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw
KernelVersion: 2.6.37 KernelVersion: 2.6.37
Contact: linux-iio@vger.kernel.org Contact: linux-iio@vger.kernel.org
Description: Description:
Raw (unscaled, no bias etc.) output voltage for Raw (unscaled, no bias etc.) output voltage for
channel Y. The number must always be specified and channel Y. The number must always be specified and
unique if the output corresponds to a single channel. unique if the output corresponds to a single channel.
While DAC like devices typically use out_voltage,
a continuous frequency generating device, such as
a DDS or PLL should use out_altvoltage.
What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw
KernelVersion: 2.6.37 KernelVersion: 2.6.37
Contact: linux-iio@vger.kernel.org Contact: linux-iio@vger.kernel.org
Description: Description:
@ -316,6 +323,8 @@ Description:
What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode
What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode
KernelVersion: 2.6.38 KernelVersion: 2.6.38
Contact: linux-iio@vger.kernel.org Contact: linux-iio@vger.kernel.org
Description: Description:
@ -330,6 +339,8 @@ Description:
What: /sys/.../iio:deviceX/out_votlageY_powerdown_mode_available What: /sys/.../iio:deviceX/out_votlageY_powerdown_mode_available
What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available
What: /sys/.../iio:deviceX/out_altvotlageY_powerdown_mode_available
What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available
KernelVersion: 2.6.38 KernelVersion: 2.6.38
Contact: linux-iio@vger.kernel.org Contact: linux-iio@vger.kernel.org
Description: Description:
@ -338,6 +349,8 @@ Description:
What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown
What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
KernelVersion: 2.6.38 KernelVersion: 2.6.38
Contact: linux-iio@vger.kernel.org Contact: linux-iio@vger.kernel.org
Description: Description:
@ -346,6 +359,24 @@ Description:
normal operation. Y may be suppressed if all outputs are normal operation. Y may be suppressed if all outputs are
controlled together. controlled together.
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency
KernelVersion: 3.4.0
Contact: linux-iio@vger.kernel.org
Description:
Output frequency for channel Y in Hz. The number must always be
specified and unique if the output corresponds to a single
channel.
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase
KernelVersion: 3.4.0
Contact: linux-iio@vger.kernel.org
Description:
Phase in radians of one frequency/clock output Y
(out_altvoltageY) relative to another frequency/clock output
(out_altvoltageZ) of the device X. The number must always be
specified and unique if the output corresponds to a single
channel.
What: /sys/bus/iio/devices/iio:deviceX/events What: /sys/bus/iio/devices/iio:deviceX/events
KernelVersion: 2.6.35 KernelVersion: 2.6.35
Contact: linux-iio@vger.kernel.org Contact: linux-iio@vger.kernel.org