Raspberry Pi Zero - can't get it going here about ipod-gadget HOT 11 CLOSED

Off topic but could you link to that fork you were looking at? I've been trying to track it down but am not having any luck. I may take a whack at that and provide some feedback if I can.

from ipod-gadget.

The fork is here:

https://github.com/p-tech-se/ipod-gadget

I did find out that the hid_report he is using, which he said he got form his iPod/iPad, is I think only 64 bytes as opposed to the 208 in the original here. I had read online that depending on how you try to dump it you sometimes get the shorter length, and I think that may be the source of the "incompatible USB" message. I was able to dump my own iPod Classic and managed to get the 208 byte version, and when I put that in the source it went from "Incompatible USB" to "No Response".

I simply don't know how to debug this or watch it in real-time while connected to the radio in order to find out what it is sending or looking for. :(

from ipod-gadget.

I'd definitely look into getting a Zero W. That's how I've made my attempts at debugging. I get enough signal to my home Wifi in my garage and SSH in that way while it's connected to my car.

from ipod-gadget.

I have a Zero W, great idea, I think I just fall down on knowing the HOW TO part, I've never deal with linux USB stuff, gadget/drivers, or anything of this sort so I'm a bit out of my element. LOL

from ipod-gadget.

The good news, at least to my eye, is you are good on the kernel module side. That all seems to be functioning. Just something with the ipod process isn't doing what it is supposed to. Or worst case the ipod process is functioning correctly (may be the case if you are seeing the USB Audio and HID devices on your Mac. Running ./ipod essentially enables the kernel and causes those USB endpoints to appear and then does the communication magic) but the Pioneer isn't seeing something it should and isn't bothering to attempt communications.

I'll try compiling and running the p-tech-se fork later this afternoon/evening and see how I fare. With oandrew's version I at least get some communication visible with my Ford Sync system as seen in issue #1 . I know it is doing -something- as normally it will complain if any USB device is connected it is not expecting and with the Zero W with all this running it doesn't say anything or throw up any messages but does appear to be trying to communicate.

from ipod-gadget.

I was going to look into some way to test the ipod handler by sending commands and watching what it sent back, but haven't gotten that far, well, not even sure how since it seems wired to watch the communications from the gadget. I can't seem to get it to log/capture what, if anything, it is getting from the head unit, but I haven't looked since giving up in frustration after the first batch of attempts. :)

from ipod-gadget.

Yeah, I just had a chance to try it in my car with p-tech-se's fork and it doesn't even log anything that I can see outside of the lines in dmesg. I even tried that kernel module and the ipod command from oandrew here and didn't get anything.

from ipod-gadget.

Ok, sounds like that fork has other problems. This original one didn't work for me either, but it sounds like it would be better to start here. I had tried it, but it didn't work either. I'll keep poking at things as well when time permits.

from ipod-gadget.

Hi guys.
I had some time and rewrote the library and the app from scratch.
The new app includes extensive logging and tracing and hopefully will help us understand why it doesn't work for you.
https://github.com/oandrew/ipod
Also join gitter chat if you have any questions.
Thanks

from ipod-gadget.

Awesome. Well, I did a completely clean re-compile of both the kernel module and ipod application. A lot nicer with the readable debug messaging. Sadly not being familiar with the IAP process, not exactly sure what end is failing. Here's what I have in both the trace log and my console log:

ipod_trace.log

putty.log

from ipod-gadget.

@cr08 Just pushed a bugfix for that specific case.

from ipod-gadget.