Modifying to only use one pin for one servo?

[SteffanDonal]

What would I need to change in the kernal driver to only have it use one GPIO pin?

[richardghirst]

Hi, if you use the new userspace servod.c implementation, all you should
need to do is comment the entries in the servo2gpio[] array that you don't
want. I.e. in you case, comment all entries but one.

Richard
On 12 Mar 2013 14:41, "Ruirize" notifications@github.com wrote:

What would I need to change in the kernal driver to only have it use one
GPIO pin?

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Reply to this email directly or view it on GitHubhttps://github.com//issues/6
.

[theuberchad]

Hello,

Firstly this module is fantastic!

I was curious though if you could do the same thing to the kernel driver as well? I was looking at the servoblaster.c code and that it had the following

static uint8_t servo2gpio[] = {
4, // P1-7
17, // P1-11
#ifdef PWM0_ON_GPIO18
1, // P1-5 (GPIO-18, P1-12 is currently PWM0, for debug)
#else
18, // P1-12
#endif
21, // P1-13
22, // P1-15
23, // P1-16
24, // P1-18
25, // P1-22

If I were to comment out all the lines except for pins 4 and 17 would that achieve the same thing?

[jminardi]

@richardghirst Should commenting out still work? I tried that and everything seemed to compile and run fine, but my servo no longer responded to commands. When I first run servod it does list that I only had 1 servo...

[richardghirst]

It should still work, but I admit I've not tested that. I'll take a look
in the next couple of days.

On Wed, Sep 4, 2013 at 10:36 PM, Jack Minardi notifications@github.comwrote:

@richardghirst https://github.com/richardghirst Should commenting out
still work? I tried that and everything seemed to compile and run fine, but
my servo no longer responded to commands. When I first run servod it does
list that I only had 1 servo...

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/6#issuecomment-23826900
.

[jminardi]

@richardghirst After restarting my computer and recompiling again it worked for me.

Thanks for the awesome software!

[richardghirst]

Closing this as you can now specify which pins you want to use for servos via the --p1pins= option to servod.