[Bug 282144] usb mouse incorrectly attaches to keyboard driver

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=282144

Gary Jennejohn <gljennjohn@gmail.com> changed:

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                 CC|                            |gljennjohn@gmail.com

--- Comment #7 from Gary Jennejohn <gljennjohn@gmail.com> ---
(In reply to fjpavon from comment #6)
You could be right about bInterfaceProtocol = 0x0001 in Interface 0 possibly
causing the problem.

In Interface 0 there's also bInterfaceClass = 0x0003  <HID device>.

In ukbd.c there's this chunk of code:

/* A match on these entries will load ukbd */
static const STRUCT_USB_HOST_ID __used ukbd_devs[] = {
        {USB_IFACE_CLASS(UICLASS_HID),
         USB_IFACE_SUBCLASS(UISUBCLASS_BOOT),
         USB_IFACE_PROTOCOL(UIPROTO_BOOT_KEYBOARD),},
};

UIPROTO_BOOT_KEYBOARD = 1.

So if USB_IFACE_SUBCLASS(UISUBCLASS_BOOT) is also present then ukbd may have
grabbed the mouse for itself.

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