NAME

       iio_writedev - write buffers on an IIO device

SYNOPSIS

       iio_writedev  [  options  ]  [-n <hostname>] [-t <trigger>] [-T <timeout-ms>] [-b <buffer-
       size>] [-s <samples>] <iio_device> [<channel> ...]

DESCRIPTION

       iio_reg is a utility for writing buffers from connected IIO devices.

OPTIONS

       -h, --help
              Tells iio_readdev to display some help, and  then  quit.   -n,  --network  Use  the
              network backend with the provided hostname

       -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_info -s

              serial:[port]

              local  with no address part

       -t --trigger
              Use the specified trigger, if needed on the specified channel

       -b --buffer-size
              Size of the capture buffer. Default is 256.

       -s --samples
              Number of samples (not bytes) to capture, 0 = infinite. Default is 0.

       -T --timeout
              Buffer timeout in milliseconds. 0 = no timeout. Default is 0.

       -a, --auto
              Scan for available contexts and if only one is available use it.

       -c --cyclic
              Use cyclic buffer mode.

RETURN VALUE

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

USAGE

       You  use iio_readdev in the same way you use many of the other libiio utilities.  You must
       specify a IIO device, and the specific channel to read. Since this is  a  write,  channels
       must be output.  It is easy to use iio_attr to find out what the channels are called.

       This identifies the device, and channel that can be used.
              iio_attr -a -o -c .
              Using auto-detected IIO context at URI "usb:3.10.5"
              dev   'cf-ad9361-dds-core-lpc',  channel  'voltage0'  (output,  index:  0,  format:
              le:S16/16>>0)
              dev  'cf-ad9361-dds-core-lpc',  channel  'voltage1'  (output,  index:  1,   format:
              le:S16/16>>0)

       This  sends  1024  samples of I and Q data to the USB attached AD9361. data is taking from
       standard in, in a binary format.
              iio_writedev -a -s 1024 cf-ad9361-dds-core-lpc voltage0 voltage1 < ./samples.dat

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