Re: CIP Discontinuity with snd-firewire-digi00x

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Hi,

Here's the modinfo:

filename: /lib/modules/3.18.24-rt22-1-rt-lts/updates/dkms/snd-firewire-digi00x.ko
license:        GPL v2
author:         Takashi Sakamoto <o-takashi@xxxxxxxxxxxxx>
description:    Digidesign Digi 002/003 family Driver
alias:          ieee1394:ven0000A07Emo00000002sp*ver*
depends: snd-firewire-lib,firewire-core,snd-pcm,snd,snd-rawmidi,snd-hwdep
vermagic:       3.18.24-rt22-1-rt-lts SMP preempt mod_unload modversions

And uname -a for good measure:
Linux archon.umbc.edu 3.18.24-rt22-1-rt-lts #1 SMP PREEMPT RT Thu Nov 12 22:45:45 CET 2015 x86_64 GNU/Linux

I know I compiled it from your git repo at one point in the past, and I think that is the version being used (I'm on a lts kernel).

Lin


On Sun, 5 Jun 2016, Takashi Sakamoto wrote:

Hi,

On Jun 5 2016 08:09, lin-alsa@xxxxxxxxxxxxx wrote:
The relavent dmesg lines (dmesg | grep fire) are here: http://ix.io/OQ2.
I don't know if the first bit about the config rom has anything to do with
this, but I hope it helps, and the hex pairs are in that log.

It's really my help, great ;)

Re: the clock issue, I'm not actually using optical in, if that's what
you mean. Please explain what you mean to me, I'm a bit confused as to
your question.

Oops. I was dull just after waking up. (it's an exchange for the quick
reply...)

On Jun 5 2016 07:30, lin-alsa@xxxxxxxxxxxxx wrote:
`Optical mode: adat
Sampling Rate: 88200
Clock Source: internal`

Indeed, your unit is set to use internal clock signal as sampling clock.
So no worry about the external signals, sorry.


Well, as long as seeing your log, ALSA digi00x driver detects
discontinuity of data block counter on incoming packets from the unit.
(On IEEE 1394 bus, data is transferred as a form of packet.)
Unfortunately, I cannot reproduce this situation with my unit.

So I think there's two possibility:
1.We work with different drivers; i.e. based on different source code.
2.We work with different state of the unit; i.e. different firmware.

At first, let's confirm the item 1. Could you explain where
snd-firewire-digi00x comes from? Is it from any Linux distribution? Or
you did handy install from somewhere such as my repository in github.com?


Regards

Takashi Sakamoto
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