iio_attr(1)                    LibIIO Utilities                    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

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

       -V, --version
              Prints the version information for this particular copy of
              iio_attr and the version of the libiio library it is using. This
              is useful for knowing if the version of the library and iio_attr
              on your system are up to date. This is also useful when
              reporting bugs.

       -S, --scan [backends]
              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 available.

OPTIONS
       -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

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

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

              serial:[port],[baud],[settings]
                     which are controlled, and need to match the iiod (or
                     tinyiiod) on the other end of the serial port.

                     [port] is something like '/dev/ttyUSB0' on Linux, and
                            'COM4' on Windows.

                     [baud] is is normally one of 110, 300, 600, 1200, 2400,
                            4800, 9600, 14400, 19200, 38400, 57600, 115200
                            [default], 128000 or 256000, but can vary system
                            to system.

                     [settings]
                            would normally be configured as '8n1' this is
                            controlled by:

                            data_bits:
                                   (5, 6, 7, 8 [default], or 9)

                            parity_bits:
                                   ('n' none [default], 'o' odd, 'e' even, 'm'
                                   mark, or 's' space)

                            stop_bits:
                                   (1 [default, or 2)

                            flow_control:
                                   ('0' none [default], 'x' Xon Xoff, 'r'
                                   RTSCTS, or 'd' DTRDSR)

              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

libiio-0.25                      05 April 2024                     iio_attr(1)