On 02/23/2014 05:52 PM, sub_acoustic wrote:
Hi,
Excuse my ignorance, but how to I recompile a kernel with the quirk? Or if
you could direct me to the information
I can't find any straightforward instructions anywhere...
Here's what I did:
1) placed the quirks in a file (/usr/src/zoom_quirks.h)
2) included it in the build by adding a line to
/usr/src/linux/sound/usb/quirks_table.h:
#include "../../../zoom_quirks.h"
It might be more direct to add the the quirk intry directly in
/usr/src/linux/sound/usb/quirks_table.h, but this way it survives across
different kernel builds and is easier to fiddle with.
Here's the content of zoom_quirks.h (between ---begin--- and ---end---,
remember the first character of the file is "{" the last is ",":
---begin---
{
/* ZOOM R16 in USB 2.0 mode */
USB_DEVICE(0x1686, 0x00dd),
.driver_info = (unsigned long) & (const struct
snd_usb_audio_quirk) {
.ifnum = QUIRK_ANY_INTERFACE,
.type = QUIRK_COMPOSITE,
.data = (const struct snd_usb_audio_quirk[]) {
{
.ifnum = 0,
.type = QUIRK_IGNORE_INTERFACE
},
{
.ifnum = 1,
.type = QUIRK_AUDIO_STANDARD_INTERFACE
},
{
.ifnum = 2,
.type = QUIRK_AUDIO_STANDARD_INTERFACE
},
{
.ifnum = 3,
.type = QUIRK_MIDI_STANDARD_INTERFACE
},
{
.ifnum = 4,
.type = QUIRK_AUDIO_FIXED_ENDPOINT,
.data = & (const struct audioformat) {
.formats = SNDRV_PCM_FMTBIT_S24_LE,
.channels = 8,
.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
}
}
},
{
.ifnum = .1
},
}
}
},
---end---
Hope that helps!
--
Atte
http://atte.dk http://modlys.dk
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