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使用 atmega8 芯片和 V-USB 库,我做了一个小桥将我的 NES 游戏手柄连接到 USB。起初,我使用其中一个示例作为我的隐藏描述符,因此...当我将设备设置为与此 HID 报告描述符握手时,我在 Windows 中正确识别了我的设备

PROGMEM const char usbHidReportDescriptor[100] = {
    0x05, 0x01,                    // USAGE_PAGE (Generic Desktop)
    0x15, 0x00,                    // LOGICAL_MINIMUM (0)
    0x09, 0x04,                    // USAGE (Joystick)
    0xa1, 0x01,                    // COLLECTION (Application)
    0x05, 0x02,                    //   USAGE_PAGE (Simulation Controls)
    0x09, 0xbb,                    //   USAGE (Throttle)
    0x15, 0x81,                    //   LOGICAL_MINIMUM (-127)
    0x25, 0x7f,                    //   LOGICAL_MAXIMUM (127)
    0x75, 0x08,                    //   REPORT_SIZE (8)
    0x95, 0x01,                    //   REPORT_COUNT (1)
    0x81, 0x02,                    //   INPUT (Data,Var,Abs)
    0x05, 0x01,                    //   USAGE_PAGE (Generic Desktop)
    0x09, 0x01,                    //   USAGE (Pointer)
    0xa1, 0x00,                    //   COLLECTION (Physical)
    0x09, 0x30,                    //     USAGE (X)
    0x09, 0x31,                    //     USAGE (Y)
    0x95, 0x02,                    //     REPORT_COUNT (2)
    0x81, 0x02,                    //     INPUT (Data,Var,Abs)
    0xc0,                          //   END_COLLECTION
    0x09, 0x39,                    //   USAGE (Hat switch)
    0x15, 0x00,                    //   LOGICAL_MINIMUM (0)
    0x25, 0x03,                    //   LOGICAL_MAXIMUM (3)
    0x35, 0x00,                    //   PHYSICAL_MINIMUM (0)
    0x46, 0x0e, 0x01,              //   PHYSICAL_MAXIMUM (270)
    0x65, 0x14,                    //   UNIT (Eng Rot:Angular Pos)
    0x75, 0x04,                    //   REPORT_SIZE (4)
    0x95, 0x01,                    //   REPORT_COUNT (1)
    0x81, 0x02,                    //   INPUT (Data,Var,Abs)
    0x05, 0x09,                    //   USAGE_PAGE (Button)
    0x19, 0x01,                    //   USAGE_MINIMUM (Button 1)
    0x29, 0x04,                    //   USAGE_MAXIMUM (Button 4)
    0x15, 0x00,                    //   LOGICAL_MINIMUM (0)
    0x25, 0x01,                    //   LOGICAL_MAXIMUM (1)
    0x75, 0x01,                    //   REPORT_SIZE (1)
0x95, 0x04,                    //   REPORT_COUNT (4)
0x55, 0x00,                    //   UNIT_EXPONENT (0)
0x65, 0x00,                    //   UNIT (None)
0x81, 0x02,                    //   INPUT (Data,Var,Abs)
0xc0                           // END_COLLECTION
};

和这个报告类型

typedef struct{
    char    throttle;
    char    x;
    char    y;
    uchar    hatSwitchAndButtons;
}report_t;

但是当我让它变得更简单时:

PROGMEM const char usbHidReportDescriptor[48] =  {
    0x05, 0x01,                    // USAGE_PAGE (Generic Desktop)
    0x09, 0x04,                    // USAGE (Joystick)
    0xa1, 0x01,                    // COLLECTION (Application)
    0x15, 0x81,                    //   LOGICAL_MINIMUM (-127)
    0x25, 0x7f,                    //   LOGICAL_MAXIMUM (127)
    0x05, 0x01,                    //   USAGE_PAGE (Generic Desktop)
    0x09, 0x01,                    //   USAGE (Pointer)
    0xa1, 0x00,                    //   COLLECTION (Physical)
    0x09, 0x30,                    //     USAGE (X)
    0x09, 0x31,                    //     USAGE (Y)
    0x75, 0x08,                    //     REPORT_SIZE (8)
    0x95, 0x02,                    //     REPORT_COUNT (2)
    0x81, 0x02,                    //     INPUT (Data,Var,Abs)
    0xc0,                          //   END_COLLECTION
    0x05, 0x09,                    //   USAGE_PAGE (Button)
    0x19, 0x01,                    //   USAGE_MINIMUM (Button 1)
    0x29, 0x04,                    //   USAGE_MAXIMUM (Button 8)
    0x15, 0x00,                    //   LOGICAL_MINIMUM (0)
    0x25, 0x01,                    //   LOGICAL_MAXIMUM (1)
    0x75, 0x01,                    //   REPORT_SIZE (1)
    0x95, 0x04,                    //   REPORT_COUNT (8)
    0x55, 0x00,                    //   UNIT_EXPONENT (0)
    0x65, 0x00,                    //   UNIT (None)
    0x81, 0x02,                    //   INPUT (Data,Var,Abs)
    0xc0                           // END_COLLECTION
};

typedef struct{
    char    x;
    char    y;
    uchar    buttons;
}report_t;

Windows 一直无法安装我的游戏杆。它仍然可以识别它的名称,但无法完成安装。

我很困惑,因为 USB Hid Tool 验证了这个报告描述符。

请问有什么想法吗?

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1 回答 1

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0x29, 0x04,                    //   USAGE_MAXIMUM (Button 8)
0x95, 0x04,                    //   REPORT_COUNT (8)

哎呀,看起来像有人用评论编程。:) 将 0x04 更改为 0x08。并观察,以便每个报告大小可以除以 8(8、16、24、32 等)

于 2013-03-22T13:26:39.450 回答