mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-11-01 00:48:50 +00:00
183 lines
8.6 KiB
Text
183 lines
8.6 KiB
Text
|
What: /sys/bus/iio/devices/iio:deviceX/buffer/length
|
||
|
|
KernelVersion: 2.6.35
|
||
|
|
Contact: linux-iio@vger.kernel.org
|
||
|
|
Description:
|
||
|
|
Number of scans contained by the buffer.
|
||
|
|
|
||
|
|
Since Kernel 5.11, multiple buffers are supported.
|
||
|
|
so, it is better to use, instead:
|
||
|
|
/sys/bus/iio/devices/iio:deviceX/bufferY/length
|
||
|
|
|
||
|
|
What: /sys/bus/iio/devices/iio:deviceX/buffer/enable
|
||
|
|
KernelVersion: 2.6.35
|
||
|
|
Contact: linux-iio@vger.kernel.org
|
||
|
|
Description:
|
||
|
|
Actually start the buffer capture up. Will start trigger
|
||
|
|
if first device and appropriate.
|
||
|
|
|
||
|
|
Since Kernel 5.11, multiple buffers are supported.
|
||
|
|
so, it is better to use, instead:
|
||
|
|
/sys/bus/iio/devices/iio:deviceX/bufferY/enable
|
||
|
|
|
||
|
|
What: /sys/bus/iio/devices/iio:deviceX/scan_elements
|
||
|
|
KernelVersion: 2.6.37
|
||
|
|
Contact: linux-iio@vger.kernel.org
|
||
|
|
Description:
|
||
|
|
Directory containing interfaces for elements that will be
|
||
|
|
captured for a single triggered sample set in the buffer.
|
||
|
|
|
||
|
|
Since kernel 5.11 the scan_elements attributes are merged into
|
||
|
|
the bufferY directory, to be configurable per buffer.
|
||
|
|
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_accel_x_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_accel_y_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_accel_z_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_anglvel_x_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_anglvel_y_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_magn_x_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_magn_y_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_magn_z_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_timestamp_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltageY_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltageY-voltageZ_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_incli_x_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_incli_y_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_pressureY_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_pressure_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_en
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_proximity_en
|
||
|
|
KernelVersion: 2.6.37
|
||
|
|
Contact: linux-iio@vger.kernel.org
|
||
|
|
Description:
|
||
|
|
Scan element control for triggered data capture.
|
||
|
|
|
||
|
|
Since kernel 5.11 the scan_elements attributes are merged into
|
||
|
|
the bufferY directory, to be configurable per buffer.
|
||
|
|
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_accel_type
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_anglvel_type
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_magn_type
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_incli_type
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltageY_type
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltage_type
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_type
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_type
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_type
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_type
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_type
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_timestamp_type
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_pressureY_type
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_pressure_type
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_type
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_proximity_type
|
||
|
|
KernelVersion: 2.6.37
|
||
|
|
Contact: linux-iio@vger.kernel.org
|
||
|
|
Description:
|
||
|
|
Description of the scan element data storage within the buffer
|
||
|
|
and hence the form in which it is read from user-space.
|
||
|
|
Form is [be|le]:[s|u]bits/storagebits[>>shift].
|
||
|
|
be or le specifies big or little endian. s or u specifies if
|
||
|
|
signed (2's complement) or unsigned. bits is the number of bits
|
||
|
|
of data and storagebits is the space (after padding) that it
|
||
|
|
occupies in the buffer. shift if specified, is the shift that
|
||
|
|
needs to be applied prior to masking out unused bits. Some
|
||
|
|
devices put their data in the middle of the transferred elements
|
||
|
|
with additional information on both sides. Note that some
|
||
|
|
devices will have additional information in the unused bits
|
||
|
|
so to get a clean value, the bits value must be used to mask
|
||
|
|
the buffer output value appropriately. The storagebits value
|
||
|
|
also specifies the data alignment. So s48/64>>2 will be a
|
||
|
|
signed 48 bit integer stored in a 64 bit location aligned to
|
||
|
|
a 64 bit boundary. To obtain the clean value, shift right 2
|
||
|
|
and apply a mask to zero the top 16 bits of the result.
|
||
|
|
For other storage combinations this attribute will be extended
|
||
|
|
appropriately.
|
||
|
|
|
||
|
|
Since kernel 5.11 the scan_elements attributes are merged into
|
||
|
|
the bufferY directory, to be configurable per buffer.
|
||
|
|
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltageY_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltageY_supply_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltageY_i_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltageY_q_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltage_i_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_voltage_q_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_accel_x_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_accel_y_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_accel_z_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_anglvel_x_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_anglvel_y_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_anglvel_z_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_magn_x_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_magn_y_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_magn_z_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_magnetic_tilt_comp_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_rot_from_north_true_tilt_comp_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_incli_x_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_incli_y_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_timestamp_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_pressureY_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_pressure_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_rot_quaternion_index
|
||
|
|
What: /sys/.../iio:deviceX/scan_elements/in_proximity_index
|
||
|
|
KernelVersion: 2.6.37
|
||
|
|
Description:
|
||
|
|
A single positive integer specifying the position of this
|
||
|
|
scan element in the buffer. Note these are not dependent on
|
||
|
|
what is enabled and may not be contiguous. Thus for user-space
|
||
|
|
to establish the full layout these must be used in conjunction
|
||
|
|
with all _en attributes to establish which channels are present,
|
||
|
|
and the relevant _type attributes to establish the data storage
|
||
|
|
format.
|
||
|
|
|
||
|
|
Since kernel 5.11 the scan_elements attributes are merged into
|
||
|
|
the bufferY directory, to be configurable per buffer.
|
||
|
|
|
||
|
|
What: /sys/bus/iio/devices/iio:deviceX/buffer/watermark
|
||
|
|
KernelVersion: 4.2
|
||
|
|
Contact: linux-iio@vger.kernel.org
|
||
|
|
Description:
|
||
|
|
A single positive integer specifying the maximum number of scan
|
||
|
|
elements to wait for.
|
||
|
|
|
||
|
|
Poll will block until the watermark is reached.
|
||
|
|
|
||
|
|
Blocking read will wait until the minimum between the requested
|
||
|
|
read amount or the low water mark is available.
|
||
|
|
|
||
|
|
Non-blocking read will retrieve the available samples from the
|
||
|
|
buffer even if there are less samples then watermark level. This
|
||
|
|
allows the application to block on poll with a timeout and read
|
||
|
|
the available samples after the timeout expires and thus have a
|
||
|
|
maximum delay guarantee.
|
||
|
|
|
||
|
|
Since Kernel 5.11, multiple buffers are supported.
|
||
|
|
so, it is better to use, instead:
|
||
|
|
/sys/bus/iio/devices/iio:deviceX/bufferY/watermark
|
||
|
|
|
||
|
|
What: /sys/bus/iio/devices/iio:deviceX/buffer/data_available
|
||
|
|
KernelVersion: 4.16
|
||
|
|
Contact: linux-iio@vger.kernel.org
|
||
|
|
Description:
|
||
|
|
A read-only value indicating the bytes of data available in the
|
||
|
|
buffer. In the case of an output buffer, this indicates the
|
||
|
|
amount of empty space available to write data to. In the case of
|
||
|
|
an input buffer, this indicates the amount of data available for
|
||
|
|
reading.
|
||
|
|
|
||
|
|
Since Kernel 5.11, multiple buffers are supported.
|
||
|
|
so, it is better to use, instead:
|
||
|
|
/sys/bus/iio/devices/iio:deviceX/bufferY/data_available
|