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Commit d802bf6f authored by Michael Hennerich's avatar Michael Hennerich Committed by Greg Kroah-Hartman
Browse files

iio: documentation: Add out_altvoltage and friends 



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

Signed-off-by: default avatarMichael Hennerich <michael.hennerich@analog.com>
Acked-by: default avatarJonathan Cameron <jic23@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent f8f5701b

Documentation/ABI/testing/sysfs-bus-iio

+31 −0
Original line number Diff line number Diff line
@@ -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