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 available.

       -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