Re: [PATCH] USB: serial: simple: narrow OWON match to avoid breaking VDS1022

On Mon, 10 Aug 2026 13:43:33 +0200, Greg Kroah-Hartman wrote:
> On Mon, Aug 10, 2026 at 05:13:22PM +0800, Huang Wei wrote:
> > Commit 4cc01410e1c1 ("USB: serial: simple: add OWON HDS200 series
> > oscilloscope support") added a USB_DEVICE() match on VID:PID
> > 0x5345:0x1234. OWON uses this same VID:PID across multiple device
> > families (HDS, VDS, SDS, PDS), so the overly broad match causes the
> > owon driver to also bind to devices like the VDS1022, which
> > previously worked fine with the generic usbserial driver.

Did they really work with usbserial?

> Where is the "owon driver" located at?  Is it just a userspace program
> or a real kernel driver?

Looks like some people want to support these devices in userspace
with usb-serial-simple and others with libusb, and they are getting
in each other's way.

libusb: https://github.com/florentbr/OWON-VDS1022/issues/109
serial: https://github.com/linux4life798/owon-hds200-capture

Maybe let's ask those people what they think. Not sure how much they
overlap in their scope (heh), but it's possible that patches to remove
and re-add IDs will keep flowing if the kernel keeps applying them
but conflicting userspace tools don't sort it out.

Regards,
Michal