Opened 5 years ago

Last modified 4 years ago

#12671 new defect

Pan/Tilt controls missing on ar71xx

Reported by: sethstorm@… Owned by: developers
Priority: normal Milestone: Barrier Breaker 14.07
Component: kernel Version: Attitude Adjustment 12.09 Beta
Keywords: Cc:


While attempting to use the pan/tilt features of mjpg-streamer, motion, and other applications, an error is returned with no movement. When camera is moved to hardware with earlier kernel revisions on same platform(e.g. 2.6.39 from Backfire 10.03.1), full functionality is present with same applications.

Hardware:Buffalo WZR-600DHP, ar71xx platform
Attached Camera: Logitech Orbit AF (USB ID below)

USB Device listing:

root@openwrt:/# lsusb
Bus 001 Device 001: ID 1d6b:0002
Bus 002 Device 001: ID 1d6b:0001
Bus 001 Device 006: ID 046d:0994

Available controls:

root@openwrt:/# v4l2-ctl -l
brightness (int) : min=0 max=255 step=1 default=128 value=128
contrast (int) : min=0 max=255 step=1 default=32 value=32
saturation (int) : min=0 max=255 step=1 default=32 value=32
white_balance_temperature_auto (bool) : default=1 value=1
gain (int) : min=0 max=255 step=1 default=0 value=0
power_line_frequency (menu) : min=0 max=2 default=2 value=2
white_balance_temperature (int) : min=0 max=10000 step=10 default=4000 value=4000
sharpness (int) : min=0 max=255 step=1 default=224 value=224
backlight_compensation (int) : min=0 max=2 step=1 default=1 value=1
exposure_auto (menu) : min=0 max=3 default=3 value=3
exposure_absolute (int) : min=1 max=10000 step=1 default=166 value=166
exposure_auto_priority (bool) : default=0 value=1

Attachments (1)

v4l2-compliance.txt (2.1 KB) - added by anonymous 5 years ago.
Output listing for v4l2-compliance

Download all attachments as: .zip

Change History (3)

Changed 5 years ago by anonymous

Output listing for v4l2-compliance

comment:1 Changed 5 years ago by anonymous

This is because the current packaged version of mjpg-streamer relies on v4l1 which is absent from the new builds (removed the kernel in 2.6ish). I've solved this and have a fully working mjpg-streamer with dynamic controls working on an ar71xx (tplink 703n) by building the latest version of mjpg-streamer.

Revision 174 from:

Now works out the box.

comment:2 Changed 4 years ago by jow

  • Milestone changed from Attitude Adjustment 12.09 to Barrier Breaker 14.07

Milestone Attitude Adjustment 12.09 deleted

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