[Line6linux-devel] line6 pod(hd)/x3 support

[Andrej K. <de...@an...>]

Hi Stefan,


In short - I am (yet again) trying to figure out Pod X3 and add it to the
driver. I found that in the last year you guys made it from staging to main
- congrats!

Anywho, I did some research (and reused pypodx3.py tool in svn). Seems like
the control/init communication w/ X3 is similar to podxt - yet the samples
format should be (acc. to specs) 48kHz (+it has two inputs). Also, it seems
that the parameter settings differs to the older pods.

I saw that you guys completely avoided the init stuff for HD and just get
on to the audio endpoint usage. Seems this doesn't work for X3. After
hacking around, it seems that also the data endpoints changed from
interrupt to bulk - but even after fixing it, the init differs in some
points. I am confident I should be able to make it work eventually.

Could you please provide lsusb's (-v) of PODxt and some POD HDnnn? Would be
interesting to compare... Also some USB logs from windows would be
interesting - to see, whether the parameter settings is still done the same
way on HD.

I think, in the end we'll have to merge pod.c+podhd.c to support x3 and not
duplicate too much of code. The nice side effect could be also potential
support for other pod features, if X3 will be similar enough to HD :)

--
Thanks for your time and answer,

Andrej