Hi Ruslan,
I can't seem to get the f_uac1 to work with more than 2 channels. I'm
able to setup f_uac2 with 8 channels.
I've tried a 5.1 and 7.1 setup (c_chmask=63 or 255, c_srate=44100,
c_ssize=2) but I get a urb 0 error on the connected Linux laptop and the
gnome sound-test freezes when testing a channel, no errors on the gadget
device. My usb controller is a DWC3 on a RockPro64 board.
usb 3-2: USB disconnect, device number 9
usb 3-2: new high-speed USB device number 10 using xhci_hcd
usb 3-2: New USB device found, idVendor=1d6b, idProduct=0104, bcdDevice=
1.00
usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 3-2: Product: audioproduct
usb 3-2: Manufacturer: audiomanufacturer
usb 3-2: SerialNumber: audioserial
usb 3-2: cannot submit urb 0, error -90: internal error
Noah
On 3/6/23 21:41, Ruslan Bilovol wrote:
On Mon, Mar 6, 2023 at 7:24 PM Noah Causin <n0manletter@xxxxxxxxx> wrote:
Hi,
I was wondering if the f_uac1 gadget supports more than two channels of
audio.
Yes it does, see channel mask configfs configuration options for
capture/playback
in the documentation for UAC1 function:
https://www.kernel.org/doc/Documentation/ABI/testing/configfs-usb-gadget-uac1
Regards,
Ruslan
