[Qemu-devel] [PATCH 01/21] usb-hid: fix tablet activation

[Gerd Hoffmann <kraxel@redhat.com>]

Activate usb hid pointer devices (mouse+tablet) unconditionally
on polls, even if we NAK the poll due to lack of new events.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/usb-hid.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/hw/usb-hid.c b/hw/usb-hid.c
index 7fc0bd8..37bca78 100644
--- a/hw/usb-hid.c
+++ b/hw/usb-hid.c
@@ -466,6 +466,9 @@ static int usb_hid_handle_data(USBDevice *dev, USBPacket *p)
     case USB_TOKEN_IN:
         if (p->ep->nr == 1) {
             int64_t curtime = qemu_get_clock_ns(vm_clock);
+            if (hs->kind == HID_MOUSE || hs->kind == HID_TABLET) {
+                hid_pointer_activate(hs);
+            }
             if (!hid_has_events(hs) &&
                 (!hs->idle || hs->next_idle_clock - curtime > 0)) {
                 return USB_RET_NAK;
-- 
1.7.1