From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jason Mancine <jason@mancine.net>
Subject: Re: Zoom R16
Date: Fri, 22 Nov 2013 20:31:10 +0000 (UTC)
Message-ID: <loom.20131122T212507-512@post.gmane.org>
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Well, I solved part of my own problem -- by removing the .endpoint and 
.ep_addr settings from the quirk it now works for capture under .ifnum=1. In 
fact, I now see the interface in JACK listed as hw:R16(#1) which it never 
had done before. 

MIDI is also working properly on .ifnum=3

So, I am now certain that interface 2 is playback...  however, playback does 
not work with the following:

{ 
                                .ifnum = 2, 
                                .type = QUIRK_AUDIO_FIXED_ENDPOINT, 
                                .data = & (const struct audioformat) { 
                                        .formats = SNDRV_PCM_FMTBIT_S24_LE, 
                                        .channels = 2, 
                                        .iface = 1, 
                                        .altsetting = 1, 
                                        .altset_idx = 1, 
                                        .attributes = 
UAC_EP_CS_ATTR_SAMPLE_RATE, 
                                        .rates = SNDRV_PCM_RATE_44100 | 
                                                 SNDRV_PCM_RATE_48000 | 
                                                 SNDRV_PCM_RATE_88200 | 
                                                 SNDRV_PCM_RATE_96000, 
                                        .rate_min = 44100, 
                                        .rate_max = 96000, 
                                        .nr_rates = 4, 
                                        .rate_table = (unsigned int[]) { 
                                                        44100, 48000, 88200, 
96000 
                                        } 
                                } 
                        }, 


This totally freezes the computer...  I am certain that the device is 24 
bit, supports all four sample rates, and is capable of full duplex 
operation.  Any suggestions for this playback section?

Thanks,
Jason