iio_attr(1)

NAME
iio_attr - list IIO devices, and read/write device attributes

SYNOPSIS
iio_attr [ options ] -d [device] [attr] [value]
iio_attr [ options ] -c [device] [channel] [attr] [value]
iio_attr [ options ] -D [device] [attr] [value]
iio_attr [ options ] -C [attr]
iio_attr -S <arg>
iio_attr -h

DESCRIPTION
iio_attr is a utility for displaying information about local or remote IIO devices. By providing an optional value, iio_attr will attempt to write the new value to the attribute.

COMMANDS

The iio_attr utility has a few main options, which control what the main utility of the application is.

-d, --device-attr
    Read and Write IIO device attributes

-c --channel-attr
    Read and Write IIO channel attributes

-B --buffer-attr
    Read and Write IIO Buffer attributes

-C --context-attr
    Read and Write IIO Context attributes

-D --debug-attr
    Read and Write IIO Debug attributes

-S, --scan
    Scan for available IIO contexts, optional arg of specific backend(s) 'ip', 'usb' or 'ip,usb'. Specific options for USB include Vendor ID, Product ID to limit scanning to specific devices 'usb=0456:b673'. vid,pid are hexadecimal numbers (no prefix needed), "*" (match any for pid only) If no argument is given, it checks all that are availble.

-h, --help
    Tells iio_attr to display some help, and then quit.

OPTIONS

-a, --auto
    Look around for devices (locally, ip, and usb), and if there is only one device found, connect to it.

-u, --uri
    The Uniform Resource Identifier (uri) for connecting to devices, can be one of:

    ip:[address]
        network address, either numeric (192.168.0.1) or network hostname (pluto.local)

    ip: blank, if compiled with zeroconf support, will find an IIO device on network

    usb:[device:port:instance]
        normally returned from iio_info -s or iio_attr -S

    usb:
        blank, if there is only one IIO device plugged into USB, find it, and attach to it.

    serial:[port],[baud],[config]
        serial configuration, serial:/dev/ttyUSB0,115200,8n1 115200 baud, 8 data bits, no partity, one stop bit

    local:
        with no address part

-i, --input-channel
    Filters channels by input channels only

-o, --output-channel
    Filters channels by output channels only

-s, --scan-channel
    Filters channels by scan channels only

-I, --ignore-case
    When pattern matching devices, channels or attributes, ignore case

-g, --generate-code <arg>
    Generate small C or python snippets that emulate what you are doing on the command line. Argument is a file name 'foo.c' or 'foo.py'

RETURN VALUE
If the specified device is not found, a non-zero exit code is returned.

SEE ALSO
iio_attr(1), iio_info(1), iio_readdev(1), iio_reg(1), iio_writedev(1), libiio(3)

libiio home page: https://wiki.analog.com/resources/tools-software/linux-software/libiio

libiio code: https://github.com/analogdevicesinc/libiio

Doxygen for libiio https://analogdevicesinc.github.io/libiio/

BUGS
All bugs are tracked at: https://github.com/analogdevicesinc/libiio/issues