[LAU] [PATCH] eMagic emi26 and emi62m new firmware versions

In addition to the patches from earlier that restore the emi62m
firmware loader to function (and reinstates the correct bitstream.HEX
file for the device), I've extracted updated firmware from the last
(to my knowledge) free (beer) software update provided by eMagic. The
update was labelled firmware 2.2 and the updater was for MacOSX 10.2.3
PPC.

I noticed that the previous round of firmware loader fixes hasn't made
it into any of the test kernels yet (or has it and I missed it?) So
I've included the loader fixes to date and the firmware update into a
single patch that works on stable kernel releases 2.6.27 up to at
least 2.6.32.2. That said---

The licensing boilerplate included with this 'free software update'
from eMagic may or may not allow eventual kernel inclusion; I've
always been a little surprised the original 1.0 firmware as used in
the current in-kernel driver was acceptably licensed. Even if not,
this update is undeniably useful to anyone who has one of these
devices and so I've made it into one big patch that can perhaps be
unofficially 'helped along' to those folks wo could use it.

The firmware update information includes various vague statements of
'improves latency and performance', but the biggest thing I notice is
that it has cured several minor but annoying bugs in the 6|2m, like
the fact that sampling always starts with neither analog nor digital
input actually internally selected/working and you have to flip the
physical switch on the front of the unit to wake it up every time you
begin recording...

The all-in-one patch is large and so stored here:

http://web.mit.edu/xiphmont/Public/emi/emi-firmware-update.patch

...and also wrote a longer blog post featuring both patches here:

http://xiphmont.livejournal.com/46858.html

If you prefer just the new .HEX files, let me know.

Cheers,
Monty
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Received on Thu Jan 7 04:15:02 2010