Control: reassign -1 src:linux
Control: forcemerge 1130114 1135682
Hi,
On Mon, May 04, 2026 at 04:21:15PM +0200, Glenn Heylen wrote:
> Package: linux
> Version: 7.0.3-1
> Severity: wishlist
> Tags: upstream
>
> The internal MIPI camera on Lunar Lake laptops doesn't work on Debian
> sid because the Lattice NX33 USB bridge (USB ID 2AC1:20C9 / ACPI HID
> INTC10B6) has no driver - CONFIG_USB_USBIO is disabled in the kernel
> config.
>
> Hardware: Dell XPS 13 9350, Core Ultra 200V (Lunar Lake), kernel
> 7.0.3+deb14-amd64
>
> Evidence:
>
> $ lsusb -d 2ac1:20c9
> Bus 003 Device 003: ID 2ac1:20c9 SLS Lattice AI USB 2.0
>
> $ grep USB_USBIO /boot/config-7.0.3+deb14-amd64
> # CONFIG_USB_USBIO is not set
>
> $ lsmod | grep -E "usbio|ljca"
> (no output)
>
> The driver was merged upstream in commit 121a0f839dbb ("usb: misc: Add
> Intel USBIO bridge driver", Sep 2025, Linux 6.18). The file
> drivers/usb/misc/usbio.c is present in the 7.0.3 tree and includes
> USB_DEVICE(0x2ac1, 0x20c9) in its ID table - so this is purely a
> config ask, no code changes needed.
>
> Three options need enabling:
>
> CONFIG_USB_USBIO=m
> CONFIG_GPIO_USBIO=m
> CONFIG_I2C_USBIO=m
>
> This is the Lunar Lake equivalent of what was done for IPU6 in
> Bug#1074441 (fixed in 6.11~rc4-1~exp1).
>
> There's a second piece needed for full camera function - the intel_cvs
> driver (ACPI HID INTC10DE, currently out-of-tree in
> intel/vision-drivers) - but usbio is the prerequisite. Happy to test
> any kernel build with these enabled.
This was already requested in #1130114, merging both bugs.
Regards,
Salvatore
