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Control-camera-from-command-line.md

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Controlling the camera from command line or shell

There are two different ways to accomplish this goal:

  1. By using st command from command line or script
  2. By using dfms commands

The st way

There is a command named st on the camera - it's a veritable swiss army knife. It can control many parameters of the camera, simulate key or touch events, etc.

st cap capt smart 
st cap capt iris drive 7.1

You can use any of the st commands available and documented in part here: ST Commands

The dfms way

First step is to have dfmsd running on the camera. This also disables the touchscreen operation as it overlays the screen with 8 lines of green text (you can see dots on the left - these are the lines, they just contain "." by default).

You can start dfmsd in three different modes: waiting for commands over USB (still needs to be done), reading from provided script (this is the basis for all the hacks here) and in test mode (-t switch) for interactive use with dfmstool.

Example

[root@drime5 ~]# dfmsd -t &
[1] 420
[root@drime5 ~]# [SYS_DFMS  ] Launched dfmsd daemon with test mode ... 
[root@drime5 ~]# dfmstool -s 'osd string 7 Hello World!' 
[root@drime5 ~]# dfmstool -s 'osd string 8 Take care with ! and bash...'

This will display the message on screen. From there on you can use any of the dfms commands available and documented in part here: DFMS Commands When you've had enough and want your touchscreen functionality back:

[root@drime5 mmc]# killall dfmsd
[SYS_DFMS  ] dfms-server: thread exited 
[SYS_DFMS  ] dfms-server: thread terminated. 
[SYS_DFMS  ] dfms-osd: thread exited 
[SYS_DFMS  ] program exited.