re: Where are my HID reports going?

On Tue, 9 Feb 2010 09:33:49 -0800, email@hidden wrote:

> I have a full-speed, custom HID, I send it a buffer of 8 bytes and it

> sends me a buffer of 64 bytes at least one per second but up to one

> every 1msec if it has something to say - I interpret these bytes so,

> in terms of TN2187, I use "raw data".

I didn't see "raw data" mentioned anywhere in TN2187…

> I followed the outline described in TN2187 (see below or attached) but

> my software does not see any input reports. I have an Ellisys

> Explorer looking at USB and they are definately there.

> Am I missing a step?

possibly…

> Does anyone have an example that works?

Tons; hardly a month goes by that I don't throw one together to test a developers device;

> I started with "HID LED test tool" and have made edits to that:

Probably your first mistake; that sample doesn't use/have a runloop so callbacks aren't going to be dispatched.

> I get a Reference to the HID manager

> I create a Matching Dictionary with my VID and PID

> I open the HID manager and it finds my device

> I print out the VID and PID as a check

> I set up a callback for the InputReport

May we see the code you used to register your callback? Nevermind… (it's was after your email)… it looks fine… and… no runloop.

> I schedule the HIDManager into the RunLoop (to handle the Callback)

> I send a HID output report - this works, it then starts sending me

> input reports

> I send another HID output report - this works too

> I then wait around (will do more stuff later)

Your callbacks aren't being dispatched. Change the "while (1) { usleep(1000000);}" to "CFRunLoopRun();".

> Looking through the other examples, some create Input Queues. I

> haven't done that. Is that needed?

Not necessary; just need a runloop.

> Have I missed something dumb?

Just a running runloop… ;-)

> I am working through TN2187 "New HID Manager APIs for Mac OS X version

> 10.5" and, while it is very good,

/blush…

> it is missing some key examples.

What do you need? I've got tons of examples; most are just too (vendor) specific to publish as generic (USB/HID) samples…

> Many thanks, John