Duplicating the code provided by Stefan fixes the problem with the Shuttle he found and does not seem to have any impact on older distros. This was just 1 initial test for me but will test some more. Patch he provided is below.

On Mon, Feb 20, 2023 at 9:57 AM Stefan de Konink via Cin <cin@lists.cinelerra-gg.org> wrote:

I have found the following issues with the latest git version;

- ShuttlePro does not work anymore

My device path changed from the -if00 suffix to -mouse suffix. I don't knowwhat is the best solution, but you may want to duplicate the entries?

The following works for me.

diff --git a/cinelerra-5.1/cinelerra/shuttle.Cb/cinelerra-5.1/cinelerra/shuttle.C

index 53b6527a..061541b2 100644
--- a/cinelerra-5.1/cinelerra/shuttle.C
+++ b/cinelerra-5.1/cinelerra/shuttle.C
@@ -622,11 +622,11 @@ static const struct shuttle_dev {
       const char *path;
       unsigned vendor, product;
} shuttle_devs[] = {
-       { "/dev/input/by-id/usb-Contour_Design_ShuttleXpress-event-if00",
+       { "/dev/input/by-id/usb-Contour_Design_ShuttleXpress-event-mouse",
               0x0b33, 0x0020 },
-       { "/dev/input/by-id/usb-Contour_Design_ShuttlePRO_v2-event-if00",
+       { "/dev/input/by-id/usb-Contour_Design_ShuttlePRO_v2-event-mouse",
               0x0b33, 0x0030 },
-       { "/dev/input/by-id/usb-Contour_Design_ShuttlePro-event-if00",
+       { "/dev/input/by-id/usb-Contour_Design_ShuttlePro-event-mouse",
               0x0b33, 0x0030 },

{"/dev/input/by-id/usb-Contour_Design_ShuttlePRO_v2-event-joystick",

               0x0b33, 0x0030 },