我正在为我的设备创建自定义HID描述符。它只从设备传输,只有一个报告。
数据是:
该设备是“特定于供应商”
我已经拉了几个小时了!任何帮助将不胜感激!
答案 0 :(得分:0)
据我所知,不支持在HID报告描述符中编码64位值。您可能能够定义REPORT_SIZE(64)和REPORT_COUNT(1),但可以在描述符中编码的最大LOGICAL_MAXIMUM()是LOGICAL_MAXIMUM(2147483647),它只是32位。
您可能必须将64位项目分解为2 x 32位项目(或8 x 8位项目),或者查看是否可以在不指定LOGICAL_MAXIMUM的情况下使其工作。例如:
//--------------------------------------------------------------------------------
// Decoded Application Collection
//--------------------------------------------------------------------------------
/*
06 00FF (GLOBAL) USAGE_PAGE 0xFF00 Vendor-defined
09 AC (LOCAL) USAGE 0xFF0000AC
A1 01 (MAIN) COLLECTION 0x01 Application (Usage=0xFF0000AC: Page=Vendor-defined, Usage=, Type=)
09 01 (LOCAL) USAGE 0xFF000001
15 00 (GLOBAL) LOGICAL_MINIMUM 0x00 (0) <-- Redundant: LOGICAL_MINIMUM is already 0
27 FFFFFF7F (GLOBAL) LOGICAL_MAXIMUM 0x7FFFFFFF (2147483647)
75 20 (GLOBAL) REPORT_SIZE 0x20 (32) Number of bits per field
95 02 (GLOBAL) REPORT_COUNT 0x02 (2) Number of fields
81 02 (MAIN) INPUT 0x00000002 (2 fields x 32 bits) 0=Data 1=Variable 0=Absolute 0=NoWrap 0=Linear 0=PrefState 0=NoNull 0=NonVolatile 0=Bitmap
27 FFFF0000 (GLOBAL) LOGICAL_MAXIMUM 0x0000FFFF (65535)
09 02 (LOCAL) USAGE 0xFF000002
75 10 (GLOBAL) REPORT_SIZE 0x10 (16) Number of bits per field
95 04 (GLOBAL) REPORT_COUNT 0x04 (4) Number of fields
81 02 (MAIN) INPUT 0x00000002 (4 fields x 16 bits) 0=Data 1=Variable 0=Absolute 0=NoWrap 0=Linear 0=PrefState 0=NoNull 0=NonVolatile 0=Bitmap
C0 (MAIN) END_COLLECTION Application
*/
//--------------------------------------------------------------------------------
// Vendor-defined inputReport (Device --> Host)
//--------------------------------------------------------------------------------
typedef struct
{
// No REPORT ID byte
uint32_t VEN_VendorDefined0001[2]; // Usage 0xFF000001: , Value = 0 to 2147483647
uint16_t VEN_VendorDefined0002[4]; // Usage 0xFF000002: , Value = 0 to 65535
} inputReport_t;