本文主要是介绍嵌入式Linux HID多指触控/触摸设备报表描述符，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
这里只做一下简单记录，更为详细的修改流程后续的文章再介绍。
报表描述符
0x05, 0x0D, // Usage Page (Digitizer)
0x09, 0x04, // Usage (Touch Screen)
0xA1, 0x01, // Collection (Application)
0x85, 0x01, // Report ID (1)
0x09, 0x22, // Usage (Finger)
0xA1, 0x02, // Collection (Logical)
0x09, 0x42, // Usage (Tip Switch)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x75, 0x01, // Report Size (1)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x95, 0x02, // Report Count (2)
0x81,
0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x51, // Usage (0x51)
0x25, 0x1F, // Logical Maximum (31)
0x75, 0x05, // Report Size (5)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x75, 0x10, // Report Size (16)
0x09, 0x30, // Usage (X)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x31, // Usage (Y)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x05, 0x0D, // Usage Page (Digitizer)
0x09, 0x22, // Usage (Finger)
0xA1, 0x02, // Collection (Logical)
0x09, 0x42, // Usage (Tip Switch)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x75, 0x01, // Report Size (1)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x95, 0x02, // Report Count (2)
0x81,
0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x51, // Usage (0x51)
0x25, 0x1F, // Logical Maximum (31)
0x75, 0x05, // Report Size (5)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x75, 0x10, // Report Size (16)
0x09, 0x30, // Usage (X)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x31, // Usage (Y)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x05, 0x0D, // Usage Page (Digitizer)
0x09, 0x22, // Usage (Finger)
0xA1, 0x02, // Collection (Logical)
0x09, 0x42, // Usage (Tip Switch)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x75, 0x01, // Report Size (1)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x95, 0x02, // Report Count (2)
0x81,
0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x51, // Usage (0x51)
0x25, 0x1F, // Logical Maximum (31)
0x75, 0x05, // Report Size (5)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x75, 0x10, // Report Size (16)
0x09, 0x30, // Usage (X)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x31, // Usage (Y)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x05, 0x0D, // Usage Page (Digitizer)
0x09, 0x22, // Usage (Finger)
0xA1, 0x02, // Collection (Logical)
0x09, 0x42, // Usage (Tip Switch)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x75, 0x01, // Report Size (1)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x95, 0x02, // Report Count (2)
0x81,
0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x51, // Usage (0x51)
0x25, 0x1F, // Logical Maximum (31)
0x75, 0x05, // Report Size (5)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x75, 0x10, // Report Size (16)
0x09, 0x30, // Usage (X)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x31, // Usage (Y)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x05, 0x0D, // Usage Page (Digitizer)
0x09, 0x22, // Usage (Finger)
0xA1, 0x02, // Collection (Logical)
0x09, 0x42, // Usage (Tip Switch)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x75, 0x01, // Report Size (1)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x95, 0x02, // Report Count (2)
0x81,
0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x51, // Usage (0x51)
0x25, 0x1F, // Logical Maximum (31)
0x75, 0x05, // Report Size (5)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x75, 0x10, // Report Size (16)
0x09, 0x30, // Usage (X)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x31, // Usage (Y)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x05, 0x0D, // Usage Page (Digitizer)
0x09, 0x22, // Usage (Finger)
0xA1, 0x02, // Collection (Logical)
0x09, 0x42, // Usage (Tip Switch)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x75, 0x01, // Report Size (1)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x95, 0x02, // Report Count (2)
0x81,
0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x51, // Usage (0x51)
0x25, 0x1F, // Logical Maximum (31)
0x75, 0x05, // Report Size (5)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x75, 0x10, // Report Size (16)
0x09, 0x30, // Usage (X)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x31, // Usage (Y)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x05, 0x0D, // Usage Page (Digitizer)
0x09, 0x22, // Usage (Finger)
0xA1, 0x02, // Collection (Logical)
0x09, 0x42, // Usage (Tip Switch)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x75, 0x01, // Report Size (1)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x95, 0x02, // Report Count (2)
0x81,
0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x51, // Usage (0x51)
0x25, 0x1F, // Logical Maximum (31)
0x75, 0x05, // Report Size (5)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x75, 0x10, // Report Size (16)
0x09, 0x30, // Usage (X)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x31, // Usage (Y)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x05, 0x0D, // Usage Page (Digitizer)
0x09, 0x22, // Usage (Finger)
0xA1, 0x02, // Collection (Logical)
0x09, 0x42, // Usage (Tip Switch)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x75, 0x01, // Report Size (1)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x95, 0x02, // Report Count (2)
0x81,
0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x51, // Usage (0x51)
0x25, 0x1F, // Logical Maximum (31)
0x75, 0x05, // Report Size (5)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x75, 0x10, // Report Size (16)
0x09, 0x30, // Usage (X)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x31, // Usage (Y)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x05, 0x0D, // Usage Page (Digitizer)
0x09, 0x22, // Usage (Finger)
0xA1, 0x02, // Collection (Logical)
0x09, 0x42, // Usage (Tip Switch)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x75, 0x01, // Report Size (1)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x95, 0x02, // Report Count (2)
0x81,
0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x51, // Usage (0x51)
0x25, 0x1F, // Logical Maximum (31)
0x75, 0x05, // Report Size (5)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x75, 0x10, // Report Size (16)
0x09, 0x30, // Usage (X)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x31, // Usage (Y)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x05, 0x0D, // Usage Page (Digitizer)
0x09, 0x22, // Usage (Finger)
0xA1, 0x02, // Collection (Logical)
0x09, 0x42, // Usage (Tip Switch)
0x15, 0x00, // Logical Minimum (0)
0x25, 0x01, // Logical Maximum (1)
0x75, 0x01, // Report Size (1)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x95, 0x02, // Report Count (2)
0x81,
0x03, // Input (Const,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x51, // Usage (0x51)
0x25, 0x1F, // Logical Maximum (31)
0x75, 0x05, // Report Size (5)
0x95, 0x01, // Report Count (1)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
0x75, 0x10, // Report Size (16)
0x09, 0x30, // Usage (X)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x09, 0x31, // Usage (Y)
0x26, 0xFF, 0x7F, // Logical Maximum (32767)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0xC0, // End Collection
0x05, 0x0D, // Usage Page (Digitizer)
0x15, 0x00, // Logical Minimum (0)
0x27, 0xFF, 0xFF, 0x00, 0x00, // Logical Maximum (65534)
0x75, 0x10, // Report Size (16)
0x95, 0x01, // Report Count (1)
0x09, 0x56, // Usage (0x56)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x25, 0x0A, // Logical Maximum (10)
0x75, 0x08, // Report Size (8)
0x09, 0x54, // Usage (0x54)
0x81,
0x02, // Input (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
0x85, 0x02, // Report ID (2)
0x09, 0x55, // Usage (0x55)
0xB1,
0x02, // Feature (Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position,Non-volatile)
0xC0, // End Collection// 548 bytes如果直接使用报表描述符是无法使用的，因为描述符内有feature特性，而linux内核自动对此响应了00。需要修改内核（这里以kernel4.19版本为例）。
修改kernel/drivers/usb/gadget/function/f_hid.c的hidg_setup方法
进行如下修改
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