The last driver for the discontinued FireWire 1814, released in 2011, supports OS X up to 10.7.3. Here's the link!
http://m-audio.com/support/download/d...
There will be no further driver releases for the FireWire 1814 and related legacy FireWire products.
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But I have found solution.
I have my drivers version 1.10.5 working with Yosemite. Problem is (and probably everybody has the same problem), that we cannot change anything in M-Audio FireWire control panel (basically switching to output and hardware tab doesn't work). But if you have access to older OS X (I have USB with 10.9.) you can boot to that system, make any changes in FireWire control panel, save settings (right part of panel) with different names - like SPDIF coaxial, ADAT, internal sync and so on.
Than you can use these files with settings and load them to FireWire control panel in OS X Yosemite. This works for me.
Vanha tuote ja vaatii hieman säätöä, jos haluaa toimimaan uudemmissa OSx versioissa... uusia ohjaimia ei kehitetä...
