This should be non-zero for boot protocol devices only, which the usb-tablet is
not.
A boot protocol of 0x02 specifically confuses OS X/macOS' HID driver stack,
causing it to generate additional bogus HID events with relative motion in
addition to the tablet's absolute coordinate events.
Signed-off-by: Phil Dennis-Jordan <p...@philjordan.eu>
---
hw/usb/dev-hid.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/hw/usb/dev-hid.c b/hw/usb/dev-hid.c
index 24d05f7..a23e5d4 100644
--- a/hw/usb/dev-hid.c
+++ b/hw/usb/dev-hid.c
@@ -144,7 +144,7 @@ static const USBDescIface desc_iface_tablet = {
.bInterfaceNumber = 0,
.bNumEndpoints = 1,
.bInterfaceClass = USB_CLASS_HID,
- .bInterfaceProtocol = 0x02,
+ .bInterfaceProtocol = 0x00,
.ndesc = 1,
.descs = (USBDescOther[]) {
{
@@ -174,7 +174,7 @@ static const USBDescIface desc_iface_tablet2 = {
.bInterfaceNumber = 0,
.bNumEndpoints = 1,
.bInterfaceClass = USB_CLASS_HID,
- .bInterfaceProtocol = 0x02,
+ .bInterfaceProtocol = 0x00,
.ndesc = 1,
.descs = (USBDescOther[]) {
{
--
2.3.2 (Apple Git-55)
