Re: [android-developers] Need help on sending events (Motion event, Key event and etc) from a service to system (android 4.0)

Dianne, thanks for your reply. Can I have a touch screen as an external HID (without add / modify any driver) in the same way like mouse and keyboard? Thanks.

Regards,

Prabudas S.

On Tuesday, 7 August 2012 03:41:29 UTC+5:30, Dianne Hackborn wrote:

Currently the only way, outside of test environments, to deliver input events to the platform is throw a kernel input device.  So your USB device must report itself as a HID device (a keyboard, trackpad, mouse, or game controller) which the kernel understands how to interact with and will generate the appropriate low-level events from the input device.

On Mon, Aug 6, 2012 at 6:18 AM, Prabudas <prabudas@gmail.com> wrote:

Hi,

I am working on an external HID device for android 4.0 devices. The device will have a touchpad and hardware buttons to replicate the touch screen and android buttons(Home, back and menu). To make this device work with any android 4.0 device, I do not want to modify the build or root the device. All I can do is, I can write an app (service) which can interact with this device through USB (using accessory mode v 1.0). So, from that app, I want to create the necessary events based on the message from USB. This can be very easy in android 4.1 with accessory mode 2.0. But, I need this for 4.0. Please help me on this. Thanks in advance.

…Prabudas

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Dianne Hackborn
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Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails.  All such questions should be posted on public forums, where I and others can see and answer them.

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