git: 48214dfab801 - stable/13 - Fix issue with Linux guest XHCI tablet probing.

The branch stable/13 has been updated by grehan:

URL: https://cgit.FreeBSD.org/src/commit/?id=48214dfab80155c03b9b22aca9f9810774c151e9

commit 48214dfab80155c03b9b22aca9f9810774c151e9
Author:     Peter Grehan <grehan@FreeBSD.org>
AuthorDate: 2024-01-14 11:27:12 +0000
Commit:     Peter Grehan <grehan@FreeBSD.org>
CommitDate: 2024-01-28 09:03:25 +0000

    Fix issue with Linux guest XHCI tablet probing.
    
    The USB3 spec mandates that the device-descriptor max packet size
    be 512 bytes, which requires a field size of 9 since it is a
    power-of-2.
    
    Linux kernels recently started validating this field, resulting in
    the table not being probed and the cursor not working in bhyve VNC.
    
    PR:             275760
    
    (cherry picked from commit 0c243cd4a3671bf728f33378ac593c08d8367bc2)
---
 usr.sbin/bhyve/usb_mouse.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usr.sbin/bhyve/usb_mouse.c b/usr.sbin/bhyve/usb_mouse.c
index 80f79980a98e..a37941c0cd9d 100644
--- a/usr.sbin/bhyve/usb_mouse.c
+++ b/usr.sbin/bhyve/usb_mouse.c
@@ -154,7 +154,7 @@ static struct usb_device_descriptor umouse_dev_desc = {
 	.bLength = sizeof(umouse_dev_desc),
 	.bDescriptorType = UDESC_DEVICE,
 	MSETW(.bcdUSB, UD_USB_3_0),
-	.bMaxPacketSize = 8,			/* max packet size */
+	.bMaxPacketSize = 9,			/* max pkt size, 2^9 = 512 */
 	MSETW(.idVendor, 0xFB5D),		/* vendor */
 	MSETW(.idProduct, 0x0001),		/* product */
 	MSETW(.bcdDevice, 0),			/* device version */