Question

写入HID设备时遇到问题; 下面是使用史努比制作的两个日志。第一个是使用设备制造商的原始演示SW制作的，第二个是我的SW日志。我的软件不适用于此设备，但适用于其他HID设备。

原始软件：

9   ??? down    n/a 27.868  BULK_OR_INTERRUPT_TRANSFER  06 16 19 17 00 00 00 00 
URB Header (length: 72)
SequenceNumber: 9
Function: 0009 (BULK_OR_INTERRUPT_TRANSFER)
TransferFlags: 0x00000002

TransferBuffer: 0x00000040 (64) length
0000: 06 16 19 17 00 00 00 00 00 00 00 00 00 00 00 00 
0010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
9   ??? up  n/a 27.874  BULK_OR_INTERRUPT_TRANSFER  -   0x00000000
URB Header (length: 72)
SequenceNumber: 9
Function: 0009 (BULK_OR_INTERRUPT_TRANSFER)
TransferFlags: 0x00000002

No TransferBuffer

我的软件：

9   out down    n/a 22.224  CLASS_INTERFACE 06 16 19 17 00 00 00 00 
URB Header (length: 80)
SequenceNumber: 9
Function: 001b (CLASS_INTERFACE)
PipeHandle: 00000000

SetupPacket:
0000: 22 09 00 02 00 00 00 00 
bmRequestType: 22
  DIR: Host-To-Device
  TYPE: Class
  RECIPIENT: Endpoint
bRequest: 09  


TransferBuffer: 0x00000040 (64) length
0000: 06 16 19 17 00 00 00 00 00 00 00 00 00 00 00 00 
0010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
0030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
9   out up  n/a 22.227  CONTROL_TRANSFER    -   0x00000000
URB Header (length: 80)
SequenceNumber: 9
Function: 0008 (CONTROL_TRANSFER)
PipeHandle: 877af60c

SetupPacket:
0000: 21 09 00 02 00 00 40 00 
bmRequestType: 21
  DIR: Host-To-Device
  TYPE: Class
  RECIPIENT: Interface
bRequest: 09  


No TransferBuffer

用于发送数据的代码如下所示：

hiddata.ReportID := 0;
hiddata.Data[0] := 6;
hiddata.Data[1] := $16;
hiddata.Data[2] := $19;
hiddata.Data[3] := $17;
for I := 4 to 64 do
  hiddata.Data[I] := $0;
b := HidD_SetOutputReport(HidHandle, @hiddata, 65);

HidHandle是正确的，执行后变量“b”为True。

有什么想法吗？

我做错了什么？

Answer 1

原文：

Function: 0009 (BULK_OR_INTERRUPT_TRANSFER)

您的计划：

Function: 0008 (CONTROL_TRANSFER)

HID规范允许两个IIRC，但看起来你的硬件很挑剔，只有在使用中断端点时才有效。

写入USB HID设备

1 个答案: