Hi John, I've got a brand-new SBT and have just tried implementing your
mod in order to connect up to an async USB DAC (Audiolab 8000CDQ). I'm
getting no sound at all over USB, and it is still coming out of the
coax. Below is a dump of some of my files. I'm guessing the status of
"stop" in the stream0 file is not a good sign. My SBT firmware is 7.5.3
r9283 (it updated itself immediately that I turned it on).
Can you offer any advice as to a possible cause of my problem? I
wondered if it was worth me trying your modified firmware, if you could
point me to it.
Many thanks in advance,
Tim
# aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: TXRX [MXC SPDIF TX/RX], device 0: MXC_SPDIF [MXC_SPDIF]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 1: Series [Audiolab 8200 Series], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: fab4 [fab4], device 0: fab4-ak4420 []
Subdevices: 0/1
Subdevice #0: subdevice #0
# cat /etc/asound.conf
pcm.usbdac {
type hw;
card Series;
}
pcm.plugusb {
type plug;
slave.pcm "usbdac";
}
ctl.plugusb {
type hw;
card Series;
}
pcm.!Series plugusb
# cd /proc/asound
# ls
Series card0 card2 cards fab4 hwdep pcm version
TXRX card1 card3 devices fab4_1 oss timers
# cd card1
# ls
id oss_mixer pcm0p stream0 usbbus usbid
# cat stream0
Lakewest Audio Audiolab 8200 Series at usb-fsl-ehci.0-1, full speed :
USB Audio
Playback:
Status: Stop
Interface 2
Altset 1
Format: 0x20
Channels: 2
Endpoint: 1 OUT (ASYNC)
Rates: 44100, 48000, 88200, 96000
#
--
indypants
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