• Linus Walleij's avatar
    iio: tools: generic_buffer: auto-enable channels · 5f991a92
    Linus Walleij authored
    If no channels are enabled when we run generic_buffer on a
    device, add a command-line option to just enable all of them,
    run the sampling and disable them all again afterwards.
    
    This is extremely useful when I'm low-level testing my
    sensors with interrupts and triggers, sample session:
    
    root@Ux500:/ lsiio
    Device 000: lsm303dlh_accel
    Device 001: lis331dl_accel
    Device 002: l3g4200d
    Device 003: lsm303dlh_magn
    Device 004: lps001wp
    Trigger 000: lsm303dlh_accel-trigger
    Trigger 001: lis331dl_accel-trigger
    Trigger 002: l3g4200d-trigger
    
    root@Ux500:/ generic_buffer -a -c 10 -n l3g4200d
    iio device number being used is 2
    iio trigger number being used is 2
    No channels are enabled, enabling all channels
    Enabling: in_anglvel_x_en
    Enabling: in_anglvel_y_en
    Enabling: in_anglvel_z_en
    Enabling: in_timestamp_en
    /sys/bus/iio/devices/iio:device2 l3g4200d-trigger
    -3.593664 -0.713133 4.870143 946684863662292480
    3.225546 0.867357 -4.945878 946684863671875000
    -0.676413 0.127296 0.106641 946684863681488037
    -0.661113 0.110160 0.128826 946684863690673828
    -0.664173 0.113067 0.123471 946684863700683593
    -0.664938 0.109395 0.124848 946684863710144042
    -0.664173 0.110619 0.130203 946684863719512939
    -0.666162 0.111231 0.132651 946684863729125976
    -0.668610 0.111690 0.130662 946684863738739013
    -0.660501 0.110466 0.131733 946684863748565673
    Disabling: in_anglvel_x_en
    Disabling: in_anglvel_y_en
    Disabling: in_anglvel_z_en
    Disabling: in_timestamp_en
    
    Pure awesomeness. If some channels have been enabled through
    scripts or manual interaction, nothing happens.
    
    Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net>
    Acked-by: default avatarDaniel Baluta <daniel.baluta@intel.com>
    Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
    Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
    5f991a92
iio_utils.h 2.93 KB