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[Qemu-devel] [PATCH v2] virtio-input: implement pass-through evdev write
From: |
Ladi Prosek |
Subject: |
[Qemu-devel] [PATCH v2] virtio-input: implement pass-through evdev writes |
Date: |
Fri, 1 Apr 2016 13:45:46 +0200 |
The write path for pass-through devices, commonly used for controlling
keyboard LEDs via EV_LED, was not implemented. This commit adds the
necessary plumbing to connect the status virtio queue to the host evdev
file descriptor.
Signed-off-by: Ladi Prosek <address@hidden>
---
v1 -> v2
- dropped the queue of pending writes
hw/input/virtio-input-host.c | 23 +++++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/hw/input/virtio-input-host.c b/hw/input/virtio-input-host.c
index 36856d6..62185d5 100644
--- a/hw/input/virtio-input-host.c
+++ b/hw/input/virtio-input-host.c
@@ -145,6 +145,28 @@ static void virtio_input_host_unrealize(DeviceState *dev,
Error **errp)
}
}
+static void virtio_input_host_handle_status(VirtIOInput *vinput,
+ virtio_input_event *event)
+{
+ VirtIOInputHost *vih = VIRTIO_INPUT_HOST(vinput);
+ struct input_event evdev;
+ int rc;
+
+ if (gettimeofday(&evdev.time, NULL)) {
+ perror("virtio_input_host_handle_status: gettimeofday");
+ return;
+ }
+
+ evdev.type = le16_to_cpu(event->type);
+ evdev.code = le16_to_cpu(event->code);
+ evdev.value = le32_to_cpu(event->value);
+
+ rc = write(vih->fd, &evdev, sizeof(evdev));
+ if (rc == -1) {
+ perror("virtio_input_host_handle_status: write");
+ }
+}
+
static const VMStateDescription vmstate_virtio_input_host = {
.name = "virtio-input-host",
.unmigratable = 1,
@@ -164,6 +186,7 @@ static void virtio_input_host_class_init(ObjectClass
*klass, void *data)
dc->props = virtio_input_host_properties;
vic->realize = virtio_input_host_realize;
vic->unrealize = virtio_input_host_unrealize;
+ vic->handle_status = virtio_input_host_handle_status;
}
static void virtio_input_host_init(Object *obj)
--
2.5.5
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