Using i2c with bonescript

[Mark A. Yoder]

I'm trying to access an i2c device via bonescript and I'm getting an error.

Here's the OS info:

uname -a

Linux yoder-debian-bone 4.4.15-ti-r37 #1 SMP Tue Jul 19 17:04:02 UTC 2016 armv7l GNU/Linux

cat /etc/dogtag 

BeagleBoard.org Debian Image 2016-08-01

Here's the code:

var b = require('bonescript');

var bus = '/dev/i2c-2';

var TMP006 = 0x40;

b.i2cOpen(bus, TMP006);

b.i2cReadByte(bus, onReadByte);

function onReadByte(x) {

if(x.event == 'callback') {

console.log('onReadByte: ' + JSON.stringify(x));

}

}

Here's the error:

/usr/local/lib/node_modules/bonescript/src/iic.js:15

    if(m.ports[args.port[0]].path) path = m.ports[args.port[0]].path;

                            ^

TypeError: Cannot read property 'path' of undefined

  at Object.m.doOpen (/usr/local/lib/node_modules/bonescript/src/iic.js:15:29)

  at Object.newFunction [as i2cOpen] (/usr/local/lib/node_modules/bonescript/src/my.js:425:31)

  at Object.<anonymous> (/root/exercises/sensors/si7021/si7021.js:11:3)

  at Module._compile (module.js:460:26)

  at Object.Module._extensions..js (module.js:478:10)

  at Module.load (module.js:355:32)

  at Function.Module._load (module.js:310:12)

  at Function.Module.runMain (module.js:501:10)

  at startup (node.js:129:16)

  at node.js:814:3

Here's the plea:

How do I fix this?

Thanks...

--Mark

[Wally Bkg]

Probably because the /sys directory layout has changed.

I'm not much of an actual Bonescript user, but I've been playing with it to help out a friend and I've found it very fragile with changes in kernel versions, and various Debian supporting packages.

Honestly I don't think all the bonescript101 embedded webpage example code has run correctly since the final Angstrom distribution.