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Update USB_GADGET.md

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Andrea Bondavalli 2020-09-08 23:29:49 +02:00 committed by GitHub
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USB_GADGET.md
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@ -17,8 +17,8 @@ For this make sure you have the following kernel config options enabled:
In the Kernel menu config the location of these option is:
-> Device Drivers
-> USB support (USB\_SUPPORT [=y])
-> USB Gadget Support (USB\_GADGET [=y])
-> USB support (USB_SUPPORT [=y])
-> USB Gadget Support (USB_GADGET [=y])
Transfer the new kernel and modules to the board.
Also make sure your board is properly configured to use the USB connector in device mode.
@ -28,7 +28,7 @@ Also make sure your board is properly configured to use the USB connector in dev
<a name="g_audio_install"></a>
Install the Audio Gadget module with:
sudo modprobe g\_audio
sudo modprobe g_audio
If the negotiation with the connected PC is succefull on the board a new virtual audio card shows up.
To verify run:
@ -63,7 +63,7 @@ You also need to configure a new stereo *Sink* on the daemon.
On the board run the following command to relay the audio from AES67 Sink to the USB:
sudo nice -n -10 ./alsaloop -c 2 -r 48000 -f S16\_LE -P plughw:RAVENNA -C plughw:UAC1Gadget
sudo nice -n -10 ./alsaloop -c 2 -r 48000 -f S16\_LE -C plughw:RAVENNA -P plughw:UAC1Gadget
On the PC start the audio recording on the new device.
**_NOTE:_** The *ALSA RAVENNA driver* will perform the format conversion from *S16\_LE* to the *Sink* format.