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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_voltage_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_peak_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_voltage-voltage_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
KernelVersion: 2.635
Contact: linux-iio@vger.kernel.org
@ -298,14 +300,19 @@ Description:
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_altvoltageY_raw
KernelVersion: 2.6.37
Contact: linux-iio@vger.kernel.org
Description:
Raw (unscaled, no bias etc.) output voltage for
channel Y. The number must always be specified and
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_altvoltageY&Z_raw
KernelVersion: 2.6.37
Contact: linux-iio@vger.kernel.org
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_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
Contact: linux-iio@vger.kernel.org
Description:
@ -330,6 +339,8 @@ Description:
What: /sys/.../iio:deviceX/out_votlageY_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
Contact: linux-iio@vger.kernel.org
Description:
@ -338,6 +349,8 @@ Description:
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_altvoltageY_powerdown
What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown
KernelVersion: 2.6.38
Contact: linux-iio@vger.kernel.org
Description:
@ -346,6 +359,24 @@ Description:
normal operation. Y may be suppressed if all outputs are
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
KernelVersion: 2.6.35
Contact: linux-iio@vger.kernel.org