linux/drivers/input/input.c, branch v3.10-rc4

Input: document that unregistering managed devices is not necessary

2013-01-09T17:07:56Z

Apparently some users of managed input devices are confused whether input_unregister_device() is needed when working with them. Clarify this in the kernel doc for devm_input_allocate_device(): in most cases there is no need to call neither input_unregister_device() nor input_free_device() when working with managed devices. Signed-off-by: Dmitry Torokhov

Input: introduce managed input devices (add devres support)

2012-11-08T17:10:05Z

There is a demand from driver's writers to use managed devices framework for their drivers. Unfortunately up to this moment input devices did not provide support for managed devices and that lead to mixing two styles of resource management which usually introduced more bugs, such as manually unregistering input device but relying in devres to free interrupt handler which (unless device is properly shut off) can cause ISR to reference already freed memory. This change introduces devm_input_allocate_device() that will allocate managed instance of input device so that driver writers who prefer using devm_* framework do not have to mix 2 styles. Reviewed-by: Henrik Rydberg Reviewed-by: Tejun Heo Signed-off-by: Dmitry Torokhov

Input: fix sparse warning in __input_release_device()

2012-10-25T07:12:01Z

This fixes the following warning: drivers/input/input.c:538:23: error: incompatible types in comparison expression (different address spaces) Signed-off-by: Dmitry Torokhov

Input: extend the number of event (and other) devices

2012-10-08T16:37:55Z

Extend the amount of character devices, such as eventX, mouseX and jsX, from a hard limit of 32 per input handler to about 1024 shared across all handlers. To be compatible with legacy installations input handlers will start creating char devices with minors in their legacy range, however once legacy range is exhausted they will start allocating minors from the dynamic range 256-1024. Reviewed-by: David Herrmann Signed-off-by: Dmitry Torokhov

Merge branch 'for-next' of git://github.com/rydberg/linux into next

2012-10-01T21:40:51Z

Merge Henrik's updates to multitouch code. Even though Jiri already pulled them in I need to do it too since my changes to evdev using dynamic major would clash with them.

Input: Send events one packet at a time

2012-09-19T17:50:18Z

On heavy event loads, such as a multitouch driver, the irqsoff latency can be as high as 250 us. By accumulating a frame worth of data before passing it on, the latency can be dramatically reduced. As a side effect, the special EV_SYN handling can be removed, since the frame is now atomic. This patch adds the events() handler callback and uses it if it exists. The latency is improved by 50 us even without the callback. Cc: Daniel Kurtz Tested-by: Benjamin Tissoires Tested-by: Ping Cheng Tested-by: Sedat Dilek Acked-by: Dmitry Torokhov Signed-off-by: Henrik Rydberg

Input: Move autorepeat to the event-passing phase

2012-09-19T17:50:17Z

Preparing to split event filtering and event passing, move the autorepeat function to the point where the event is actually passed. Tested-by: Benjamin Tissoires Tested-by: Ping Cheng Acked-by: Dmitry Torokhov Signed-off-by: Henrik Rydberg

Input: Make sure we follow all EV_KEY events

2012-09-19T17:50:17Z

For some EV_KEY types, sending a larger-than-one value causes the input state to oscillate. This patch makes sure this cannot happen, clearing up the autorepeat bypass logic in the process. Tested-by: Benjamin Tissoires Tested-by: Ping Cheng Acked-by: Dmitry Torokhov Signed-off-by: Henrik Rydberg

Input: Improve the events-per-packet estimate

2012-09-19T17:50:17Z

The events-per-packet estimate has so far been used by MT devices only. This patch adjusts the packet buffer size to also accomodate the KEY and MSC events. Keyboards normally send one or two keys at a time. MT devices normally send a number of button keys along with the MT information. The buffer size chosen here covers those cases, and matches the default buffer size in evdev. Since the input estimate is now preferred, remove the special input-mt estimate. Reviewed-and-tested-by: Ping Cheng Tested-by: Benjamin Tissoires Acked-by: Dmitry Torokhov Signed-off-by: Henrik Rydberg

Input: Break out MT data

2012-09-19T17:50:17Z

Move all MT-related things to a separate place. This saves some bytes for non-mt input devices, and prepares for new MT features. Reviewed-and-tested-by: Benjamin Tissoires Tested-by: Ping Cheng Acked-by: Dmitry Torokhov Signed-off-by: Henrik Rydberg