@@ -10,7 +10,9 @@
* any later version.
*/
+#include <linux/device.h>
#include <linux/hid.h>
+#include <linux/input.h>
#include <linux/module.h>
#include "hid-ids.h"
@@ -19,8 +21,15 @@
struct wiimote_data {
struct hid_device *hdev;
+ struct input_dev *input;
};
+static int wiimote_input_event(struct input_dev *dev, unsigned int type,
+ unsigned int code, int value)
+{
+ return 0;
+}
+
static int wiimote_hid_event(struct hid_device *hdev, struct hid_report *report,
u8 *raw_data, int size)
{
@@ -38,9 +47,24 @@ static struct wiimote_data *wiimote_create(struct hid_device *hdev)
if (!wdata)
return NULL;
+ wdata->input = input_allocate_device();
+ if (!wdata->input) {
+ kfree(wdata);
+ return NULL;
+ }
+
wdata->hdev = hdev;
hid_set_drvdata(hdev, wdata);
+ input_set_drvdata(wdata->input, wdata);
+ wdata->input->event = wiimote_input_event;
+ wdata->input->dev.parent = &wdata->hdev->dev;
+ wdata->input->id.bustype = wdata->hdev->bus;
+ wdata->input->id.vendor = wdata->hdev->vendor;
+ wdata->input->id.product = wdata->hdev->product;
+ wdata->input->id.version = wdata->hdev->version;
+ wdata->input->name = WIIMOTE_NAME;
+
return wdata;
}
@@ -73,10 +97,19 @@ static int wiimote_hid_probe(struct hid_device *hdev,
goto err;
}
+ ret = input_register_device(wdata->input);
+ if (ret) {
+ hid_err(hdev, "Cannot register input device\n");
+ goto err_stop;
+ }
+
hid_info(hdev, "New device registered\n");
return 0;
+err_stop:
+ hid_hw_stop(hdev);
err:
+ input_free_device(wdata->input);
wiimote_destroy(wdata);
return ret;
}
@@ -87,6 +120,7 @@ static void wiimote_hid_remove(struct hid_device *hdev)
hid_info(hdev, "Device removed\n");
hid_hw_stop(hdev);
+ input_unregister_device(wdata->input);
wiimote_destroy(wdata);
}
Register input device so the wiimote can report input events on it. We do not use HIDINPUT because the wiimote does not provide any descriptor table which might be used by HIDINPUT. So we avoid having HIDINPUT parse the wiimote descriptor and create unrelated or unknown event flags. Instead we register our own input device that we have full control of. Signed-off-by: David Herrmann <dh.herrmann@googlemail.com> --- drivers/hid/hid-wiimote.c | 34 ++++++++++++++++++++++++++++++++++ 1 files changed, 34 insertions(+), 0 deletions(-)