HID: Add an input configured notification callback
A hid device may create several input devices, and a driver may need
to prepare or finalize the configuration per input device. Currently,
there is no sane way for a driver to know when a device has been
configured. This patch adds a callback providing that information.
Reviewed-and-tested-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Tested-by: Ping Cheng <pingc@wacom.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 811bfad..d917c0d 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -1154,6 +1154,7 @@
int hidinput_connect(struct hid_device *hid, unsigned int force)
{
+ struct hid_driver *drv = hid->driver;
struct hid_report *report;
struct hid_input *hidinput = NULL;
struct input_dev *input_dev;
@@ -1228,6 +1229,8 @@
* UGCI) cram a lot of unrelated inputs into the
* same interface. */
hidinput->report = report;
+ if (drv->input_configured)
+ drv->input_configured(hid, hidinput);
if (input_register_device(hidinput->input))
goto out_cleanup;
hidinput = NULL;
@@ -1235,8 +1238,12 @@
}
}
- if (hidinput && input_register_device(hidinput->input))
- goto out_cleanup;
+ if (hidinput) {
+ if (drv->input_configured)
+ drv->input_configured(hid, hidinput);
+ if (input_register_device(hidinput->input))
+ goto out_cleanup;
+ }
return 0;