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HID: wiimote: add sub-device module infrastructure

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To avoid loading all sub-device drivers for every Wii Remote, even though
the required hardware might not be available, we introduce a module layer.

The module layer specifies which sub-devices are available on each
device-type. After device detection, we only load the modules for the
detected device. If module loading fails, we unload everything and mark
the device as WIIMOTE_DEV_UNKNOWN. As long as a device is marked as
"unknown", no sub-devices will be used and the device is considered
unsupported.

All the different sub-devices, including KEYS, RUMBLE, BATTERY, LEDS,
ACCELEROMETER, IR and more will be ported in follow-up patches to the new
module layer.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
This commit is contained in:
David Herrmann
2013-05-05 23:12:51 +02:00
committed by Jiri Kosina
parent d758b1f0c5
commit 27f0694214
4 changed files with 194 additions and 4 deletions
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drivers/hid/Makefile
+1 -1
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@@ -28,7 +28,7 @@ ifdef CONFIG_LOGIWHEELS_FF
hid-logitech-y += hid-lg4ff.o
endif
hid-wiimote-y := hid-wiimote-core.o
hid-wiimote-y := hid-wiimote-core.o hid-wiimote-modules.o
ifdef CONFIG_HID_WIIMOTE_EXT
hid-wiimote-y += hid-wiimote-ext.o
endif