HID: add framebuffer support to PicoLCD device

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Add framebuffer support to PicoLCD device with use of deferred-io.

Only changed areas of framebuffer get sent to device in order to
save USB bandwidth and especially resources on PicoLCD device or
allow higher refresh rate for a small area. Changed tiles are
determined while updating shadow framebuffer.

Signed-off-by: Bruno Prémont <bonbons@linux-vserver.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

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Bruno Prémont 2010-03-30 22:34:30 +02:00 • committed by Jiri Kosina

parent 236db47c2b

commit b8c21cf697

4 changed files with 590 additions and 2 deletions

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17

Documentation/ABI/testing/sysfs-driver-hid-picolcd

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7

drivers/hid/Kconfig

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567

drivers/hid/hid-picolcd.c

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1

drivers/hid/usbhid/hid-core.c

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