HID报告/iPhone/iPad主页按钮的扫描代码 [英] HID reports/scan codes for iPhone's/iPad's home button

问题描述

我正在使用RN-42-HID蓝牙模块为iOS创建一个非常简单的Arduino BT键盘.我已经能够连接到iPad并向其发送一些HID报告.

I'm creating a very simple Arduino BT keyboard for iOS using a RN-42-HID Bluetooth module. I've been able to connect to an iPad and send it a few HID reports.

到目前为止，我可以使光标向左，向右，向上和向下移动，以及选择某个应用程序.耶！我使用Roving Network的HID手册中详细介绍的HID原始报告来完成此操作.

So far, I can make the cursor go left, right, up and down, as well as select a certain app. Yay! I do this using the HID raw reports as detailed by Roving Network's HID manual.

我一直在尝试找出如何使iPad进入主屏幕或更改页面.当我与启用了VoiceOver的常规BT键盘连接时，"ctrl + alt + H"的BT键盘组合使iPad返回主页.

I've been trying to figure out how to make my iPad go to the home screen, or change the page. When I connect with a regular BT keyboard, with VoiceOver enabled, the BT keyboard combination of "ctrl + alt + H" makes the iPad return to the home page.

当我发送相应的HID原始报告时，iPad不会返回家中.

When I send the corresponding HID raw report, the iPad doesn't return home.

const byte HOME1[] = { //equivalent to keyboard ctrl + opt/alt + h
  0xFD,0x09,0x01,0x05,0x00,0x0B,0x00,0x00,0x00,0x00,0x00};

打开文本字段时，它会看到"H"并打印"H"，但它不会返回首页.

It sees the "H", and prints "H" when I have a text field open, but it just doesn't return to the home page.

我也尝试过同时发送修饰键，作为3个扫描码的组合，但这在iPad上也不起作用.

I've also tried sending the modifier keys just as a combination of 3 scan codes at the same time, but that didn't work on the iPad, either.

const byte HOME2[] = { //equivalent to keyboard ctrl + opt/alt + h
  0xFD,0x09,0x01,0x00,0x00,0xE0,0xE2,0x0B,0x00,0x00,0x00};

我以正确的格式发送报告吗?我发送正确的扫描代码吗?

Am I sending the report in the right format? Am I sending the right scan codes?

即使您没有实际的扫描代码，也可以通过某种方法找出激活首页的代码.有谁知道我如何找到主页"按钮(以及翻页，还涉及"alt"按钮)的扫描代码?

Even if you don't have the actual scan code, it would be nice if there was a way to figure out what code activates the home page. Does anyone know how I can find the scan code for the home button (and for page turn, which also involves the alt button)?

推荐答案

我遇到了类似的问题，但是按键组合不同.我发现我必须将动作分为3个步骤:Ctrl + alt +字母"，然后Ctrl + alt，然后释放所有按钮.因此，仅查看您的代码，也许尝试发送以下序列:

I had a similar issue but with a different combination of keys. I found that i had to split the action into 3 steps: Ctrl+alt+ "letter", then Ctrl+alt, then all buttons released. So just looking at your code, maybe try sending this sequence:

0xFD，0x09,0x01， 0x05 ，0x00， 0x0B ，0x00,0x00,0x00,0x00,0x00//ctrl + alt + h

0xFD,0x09,0x01,0x05,0x00,0x0B,0x00,0x00,0x00,0x00,0x00 //ctrl + alt + h

0xFD，0x09,0x01， 0x05 ，0x00， 0x00 ，0x00,0x00,0x00,0x00,0x00//ctrl + alt

0xFD,0x09,0x01,0x05,0x00,0x00,0x00,0x00,0x00,0x00,0x00 //ctrl + alt

0xFD，0x09,0x01， 0x00 ，0x00， 0x00 ，0x00,0x00,0x00,0x00,0x00//全部释放.

0xFD,0x09,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00 //all released.

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