Usb 非应用程序顶级集合？
USB HID规格说明 每个顶级集合都必须是应用程序集合，而报表可能不是 跨越多个顶级集合 但是，USB HID报告描述符工具中提供的示例之一，即显示示例，具有逻辑类型的顶级集合，没有应用程序集合：Usb 非应用程序顶级集合？,usb,hid,Usb,Hid,USB HID规格说明 每个顶级集合都必须是应用程序集合，而报表可能不是 跨越多个顶级集合 但是，USB HID报告描述符工具中提供的示例之一，即显示示例，具有逻辑类型的顶级集合，没有应用程序集合： 0x05, 0x14, // USAGE_PAGE (Alphnumeric Display) 0x09, 0x01, // USAGE (Alphanumeric Display) 0x15, 0x00,
0x05, 0x14, // USAGE_PAGE (Alphnumeric Display)
0x09, 0x01, // USAGE (Alphanumeric Display)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0xa1, 0x02, // COLLECTION (Logical)
0x09, 0x20, // USAGE (Display Attributes Report)
0xa1, 0x02, // COLLECTION (Logical)
0x09, 0x35, // USAGE (Rows)
0x09, 0x36, // USAGE (Columns)
0x09, 0x3d, // USAGE (Character Width)
0x09, 0x3e, // USAGE (Character Height)
0x85, 0x01, // REPORT_ID (1)
0x25, 0x1f, // LOGICAL_MAXIMUM (31)
0x75, 0x05, // REPORT_SIZE (5)
0x95, 0x04, // REPORT_COUNT (4)
0xb1, 0x03, // FEATURE (Cnst,Var,Abs)
0x75, 0x01, // REPORT_SIZE (1)
0x95, 0x03, // REPORT_COUNT (3)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x09, 0x21, // USAGE (ASCII Character Set)
0x09, 0x22, // USAGE (Data Read Back)
0x09, 0x29, // USAGE (Vertical Scroll)
0xb1, 0x03, // FEATURE (Cnst,Var,Abs)
0x95, 0x03, // REPORT_COUNT (3)
0xb1, 0x03, // FEATURE (Cnst,Var,Abs)
0xc0, // END_COLLECTION
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x01, // REPORT_COUNT (1)
0x25, 0x02, // LOGICAL_MAXIMUM (2)
0x09, 0x2d, // USAGE (Display Status)
0xa1, 0x02, // COLLECTION (Logical)
0x09, 0x2e, // USAGE (Stat Not Ready)
0x09, 0x2f, // USAGE (Stat Ready)
0x09, 0x30, // USAGE (Err Not a loadable character)
0x81, 0x40, // INPUT (Data,Ary,Abs,Null)
0xc0, // END_COLLECTION
0x09, 0x32, // USAGE (Cursor Position Report)
0xa1, 0x02, // COLLECTION (Logical)
0x85, 0x02, // REPORT_ID (2)
0x75, 0x04, // REPORT_SIZE (4)
0x95, 0x01, // REPORT_COUNT (1)
0x25, 0x0f, // LOGICAL_MAXIMUM (15)
0x09, 0x34, // USAGE (Column)
0xb1, 0x22, // FEATURE (Data,Var,Abs,NPrf)
0x25, 0x01, // LOGICAL_MAXIMUM (1)
0x09, 0x33, // USAGE (Row)
0xb1, 0x22, // FEATURE (Data,Var,Abs,NPrf)
0xc0, // END_COLLECTION
0x09, 0x2b, // USAGE (Character Report)
0xa1, 0x02, // COLLECTION (Logical)
0x85, 0x03, // REPORT_ID (3)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x04, // REPORT_COUNT (4)
0x25, 0x7e, // LOGICAL_MAXIMUM (126)
0x09, 0x2c, // USAGE (Display Data)
0xb2, 0x02, 0x01, // FEATURE (Data,Var,Abs,Buf)
0xc0, // END_COLLECTION
0x85, 0x04, // REPORT_ID (4)
0x09, 0x3b, // USAGE (Font Report)
0xa1, 0x02, // COLLECTION (Logical)
0x15, 0x00, // LOGICAL_MINIMUM (0)
0x25, 0x7e, // LOGICAL_MAXIMUM (126)
0x75, 0x08, // REPORT_SIZE (8)
0x95, 0x01, // REPORT_COUNT (1)
0x09, 0x2c, // USAGE (Display Data)
0x91, 0x02, // OUTPUT (Data,Var,Abs)
0x95, 0x05, // REPORT_COUNT (5)
0x09, 0x3c, // USAGE (Font Data)
0x92, 0x02, 0x01, // OUTPUT (Data,Var,Abs,Buf)
0xc0, // END_COLLECTION
0xc0, // END_COLLECTION
这是允许的吗？不，这是不允许的 给出的示例似乎与“附录A.8带显示器的设备”中的示例非常相似，中定义了顶级应用程序集合 我想说，您发布的示例可能有一些转录错误，特别是因为所选的顶级用法（0x00140001）的用法类型为CA，因此打算用于应用程序集合项而不是逻辑集合（请参阅Usage Tables文档的第109页） 第一个逻辑集合应更改为：
0xa1, 0x01, // COLLECTION (Application)
//--------------------------------------------------------------------------------
//解码应用程序集合
//--------------------------------------------------------------------------------
/*
05 14（全球）使用情况页面0x0014字母数字显示页面
09 01（本地）使用0x00140001字母数字显示（CA=应用程序集合）
15 00（全局）逻辑_最小0x00（0）
//--------------------------------------------------------------------------------
// Decoded Application Collection
//--------------------------------------------------------------------------------
/*
05 14 (GLOBAL) USAGE_PAGE 0x0014 Alphanumeric Display Page
09 01 (LOCAL) USAGE 0x00140001 Alphanumeric Display (CA=Application Collection)
15 00 (GLOBAL) LOGICAL_MINIMUM 0x00 (0) <-- Redundant: LOGICAL_MINIMUM is already 0 <-- Info: Consider replacing 15 00 with 14
A1 01 (MAIN) COLLECTION 0x00000001 Application (Usage=0x00140001: Page=Alphanumeric Display Page, Usage=Alphanumeric Display, Type=CA)
09 20 (LOCAL) USAGE 0x00140020 Display Attributes Report (CL=Logical Collection)
A1 02 (MAIN) COLLECTION 0x00000002 Logical (Usage=0x00140020: Page=Alphanumeric Display Page, Usage=Display Attributes Report, Type=CL)
09 35 (LOCAL) USAGE 0x00140035 Rows (SV=Static Value)
09 36 (LOCAL) USAGE 0x00140036 Columns (SV=Static Value)
09 3D (LOCAL) USAGE 0x0014003D Character Width (SV=Static Value)
09 3E (LOCAL) USAGE 0x0014003E Character Height (SV=Static Value)
85 01 (GLOBAL) REPORT_ID 0x01 (1)
25 1F (GLOBAL) LOGICAL_MAXIMUM 0x1F (31)
75 05 (GLOBAL) REPORT_SIZE 0x05 (5) Number of bits per field
95 04 (GLOBAL) REPORT_COUNT 0x04 (4) Number of fields
B1 03 (MAIN) FEATURE 0x00000003 (4 fields x 5 bits) 1=Constant 1=Variable 0=Absolute 0=NoWrap 0=Linear 0=PrefState 0=NoNull 0=NonVolatile 0=Bitmap
75 01 (GLOBAL) REPORT_SIZE 0x01 (1) Number of bits per field
95 03 (GLOBAL) REPORT_COUNT 0x03 (3) Number of fields
25 01 (GLOBAL) LOGICAL_MAXIMUM 0x01 (1)
09 21 (LOCAL) USAGE 0x00140021 ASCII Character Set (SF=Static Flag)
09 22 (LOCAL) USAGE 0x00140022 Data Read Back (SF=Static Flag)
09 29 (LOCAL) USAGE 0x00140029 Vertical Scroll (SFDF=Static Flag or Dynamic Flag)
B1 03 (MAIN) FEATURE 0x00000003 (3 fields x 1 bit) 1=Constant 1=Variable 0=Absolute 0=NoWrap 0=Linear 0=PrefState 0=NoNull 0=NonVolatile 0=Bitmap
95 03 (GLOBAL) REPORT_COUNT 0x03 (3) Number of fields <-- Redundant: REPORT_COUNT is already 3
B1 03 (MAIN) FEATURE 0x00000003 (3 fields x 1 bit) 1=Constant 1=Variable 0=Absolute 0=NoWrap 0=Linear 0=PrefState 0=NoNull 0=NonVolatile 0=Bitmap
C0 (MAIN) END_COLLECTION Logical
75 08 (GLOBAL) REPORT_SIZE 0x08 (8) Number of bits per field
95 01 (GLOBAL) REPORT_COUNT 0x01 (1) Number of fields
25 02 (GLOBAL) LOGICAL_MAXIMUM 0x02 (2)
09 2D (LOCAL) USAGE 0x0014002D Display Status (CL=Logical Collection)
A1 02 (MAIN) COLLECTION 0x00000002 Logical (Usage=0x0014002D: Page=Alphanumeric Display Page, Usage=Display Status, Type=CL)
09 2E (LOCAL) USAGE 0x0014002E Stat Not Ready (Sel=Selector)
09 2F (LOCAL) USAGE 0x0014002F Stat Ready (Sel=Selector)
09 30 (LOCAL) USAGE 0x00140030 Err Not a loadable character (Sel=Selector)
81 40 (MAIN) INPUT 0x00000040 (1 field x 8 bits) 0=Data 0=Array 0=Absolute
C0 (MAIN) END_COLLECTION Logical
09 32 (LOCAL) USAGE 0x00140032 Cursor Position Report (CL=Logical Collection)
A1 02 (MAIN) COLLECTION 0x00000002 Logical (Usage=0x00140032: Page=Alphanumeric Display Page, Usage=Cursor Position Report, Type=CL)
85 02 (GLOBAL) REPORT_ID 0x02 (2)
75 04 (GLOBAL) REPORT_SIZE 0x04 (4) Number of bits per field
95 01 (GLOBAL) REPORT_COUNT 0x01 (1) Number of fields <-- Redundant: REPORT_COUNT is already 1
25 0F (GLOBAL) LOGICAL_MAXIMUM 0x0F (15)
09 34 (LOCAL) USAGE 0x00140034 Column (DV=Dynamic Value)
B1 22 (MAIN) FEATURE 0x00000022 (1 field x 4 bits) 0=Data 1=Variable 0=Absolute 0=NoWrap 0=Linear 1=NoPrefState 0=NoNull 0=NonVolatile 0=Bitmap
25 01 (GLOBAL) LOGICAL_MAXIMUM 0x01 (1)
09 33 (LOCAL) USAGE 0x00140033 Row (DV=Dynamic Value)
B1 22 (MAIN) FEATURE 0x00000022 (1 field x 4 bits) 0=Data 1=Variable 0=Absolute 0=NoWrap 0=Linear 1=NoPrefState 0=NoNull 0=NonVolatile 0=Bitmap
C0 (MAIN) END_COLLECTION Logical
09 2B (LOCAL) USAGE 0x0014002B Character Report (CL=Logical Collection)
A1 02 (MAIN) COLLECTION 0x00000002 Logical (Usage=0x0014002B: Page=Alphanumeric Display Page, Usage=Character Report, Type=CL)
85 03 (GLOBAL) REPORT_ID 0x03 (3)
75 08 (GLOBAL) REPORT_SIZE 0x08 (8) Number of bits per field
95 04 (GLOBAL) REPORT_COUNT 0x04 (4) Number of fields
25 7E (GLOBAL) LOGICAL_MAXIMUM 0x7E (126)
09 2C (LOCAL) USAGE 0x0014002C Display Data (DV=Dynamic Value)
B2 0201 (MAIN) FEATURE 0x00000102 (4 fields x 8 bits) 0=Data 1=Variable 0=Absolute 0=NoWrap 0=Linear 0=PrefState 0=NoNull 0=NonVolatile 1=Buffer
C0 (MAIN) END_COLLECTION Logical
85 04 (GLOBAL) REPORT_ID 0x04 (4)
09 3B (LOCAL) USAGE 0x0014003B Font Report (CL=Logical Collection)
A1 02 (MAIN) COLLECTION 0x00000002 Logical (Usage=0x0014003B: Page=Alphanumeric Display Page, Usage=Font Report, Type=CL)
15 00 (GLOBAL) LOGICAL_MINIMUM 0x00 (0) <-- Redundant: LOGICAL_MINIMUM is already 0 <-- Info: Consider replacing 15 00 with 14
25 7E (GLOBAL) LOGICAL_MAXIMUM 0x7E (126) <-- Redundant: LOGICAL_MAXIMUM is already 126
75 08 (GLOBAL) REPORT_SIZE 0x08 (8) Number of bits per field <-- Redundant: REPORT_SIZE is already 8
95 01 (GLOBAL) REPORT_COUNT 0x01 (1) Number of fields
09 2C (LOCAL) USAGE 0x0014002C Display Data (DV=Dynamic Value)
91 02 (MAIN) OUTPUT 0x00000002 (1 field x 8 bits) 0=Data 1=Variable 0=Absolute 0=NoWrap 0=Linear 0=PrefState 0=NoNull 0=NonVolatile 0=Bitmap
95 05 (GLOBAL) REPORT_COUNT 0x05 (5) Number of fields
09 3C (LOCAL) USAGE 0x0014003C Font Data (BB=Buffered Bytes)
92 0201 (MAIN) OUTPUT 0x00000102 (5 fields x 8 bits) 0=Data 1=Variable 0=Absolute 0=NoWrap 0=Linear 0=PrefState 0=NoNull 0=NonVolatile 1=Buffer
C0 (MAIN) END_COLLECTION Logical
C0 (MAIN) END_COLLECTION Application
*/
//--------------------------------------------------------------------------------
// Alphanumeric Display Page featureReport 01 (Device <-> Host)
//--------------------------------------------------------------------------------
typedef struct
{
uint8_t reportId; // Report ID = 0x01 (1)
// Collection: AlphanumericDisplay DisplayAttributesReport
uint8_t AD_AlphanumericDisplayDisplayAttributesReportRows : 5; // Usage 0x00140035: Rows, Value = 0 to 31
uint8_t AD_AlphanumericDisplayDisplayAttributesReportColumns : 5; // Usage 0x00140036: Columns, Value = 0 to 31
uint8_t AD_AlphanumericDisplayDisplayAttributesReportCharacterWidth : 5; // Usage 0x0014003D: Character Width, Value = 0 to 31
uint8_t AD_AlphanumericDisplayDisplayAttributesReportCharacterHeight : 5; // Usage 0x0014003E: Character Height, Value = 0 to 31
uint8_t AD_AlphanumericDisplayDisplayAttributesReportAsciiCharacterSet : 1; // Usage 0x00140021: ASCII Character Set, Value = 0 to 1
uint8_t AD_AlphanumericDisplayDisplayAttributesReportDataReadBack : 1; // Usage 0x00140022: Data Read Back, Value = 0 to 1
uint8_t AD_AlphanumericDisplayDisplayAttributesReportVerticalScroll : 1; // Usage 0x00140029: Vertical Scroll, Value = 0 to 1
uint8_t : 1; // Pad
uint8_t : 1; // Pad
uint8_t : 1; // Pad
} featureReport01_t;
//--------------------------------------------------------------------------------
// Alphanumeric Display Page featureReport 02 (Device <-> Host)
//--------------------------------------------------------------------------------
typedef struct
{
uint8_t reportId; // Report ID = 0x02 (2)
// Collection: AlphanumericDisplay CursorPositionReport
uint8_t AD_AlphanumericDisplayCursorPositionReportColumn : 4; // Usage 0x00140034: Column, Value = 0 to 15
uint8_t AD_AlphanumericDisplayCursorPositionReportRow : 4; // Usage 0x00140033: Row, Value = 0 to 1
} featureReport02_t;
//--------------------------------------------------------------------------------
// Alphanumeric Display Page featureReport 03 (Device <-> Host)
//--------------------------------------------------------------------------------
typedef struct
{
uint8_t reportId; // Report ID = 0x03 (3)
// Collection: AlphanumericDisplay CharacterReport
uint8_t AD_AlphanumericDisplayCharacterReportDisplayData[4]; // Usage 0x0014002C: Display Data, Value = 0 to 126
} featureReport03_t;
//--------------------------------------------------------------------------------
// Alphanumeric Display Page inputReport 01 (Device --> Host)
//--------------------------------------------------------------------------------
typedef struct
{
uint8_t reportId; // Report ID = 0x01 (1)
// Collection: AlphanumericDisplay DisplayStatus
uint8_t AD_AlphanumericDisplayDisplayStatus; // Value = 0 to 2
// Value 0 = Usage 0x0014002E: Stat Not Ready
// Value 1 = Usage 0x0014002F: Stat Ready
// Value 2 = Usage 0x00140030: Err Not a loadable character
} inputReport01_t;
//--------------------------------------------------------------------------------
// Alphanumeric Display Page outputReport 04 (Device <-- Host)
//--------------------------------------------------------------------------------
typedef struct
{
uint8_t reportId; // Report ID = 0x04 (4)
// Collection: AlphanumericDisplay FontReport
uint8_t AD_AlphanumericDisplayFontReportDisplayData; // Usage 0x0014002C: Display Data, Value = 0 to 126
uint8_t AD_AlphanumericDisplayFontReportFontData[5]; // Usage 0x0014003C: Font Data, Value = 0 to 126
} outputReport04_t;