Mac IOKit USB信号检测
matchingDict = IOServiceMatching(kIOUSBDeviceClassName);
numberRef = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &vendorId);
CFDictionarySetValue(matchingDict, CFSTR(kUSBVendorID), numberRef);
CFRelease(numberRef);
numberRef = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &deviceProductId);
CFDictionarySetValue(matchingDict, CFSTR(kUSBProductID), numberRef);
CFRelease(numberRef);
numberRef = NULL;
kr = IOServiceAddMatchingNotification(gNotifyPort,
kIOFirstMatchNotification,
matchingDict,
DeviceAdded,
NULL,
&gAddedIter);
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Full Speed device @ 3 (0xFD520000): ............................................. Composite device: "Apple Cinema HD Display" Port Information: 0x0019 Captive External Device Connected Enabled Device Descriptor Descriptor Version Number: 0x0110 Device Class: 0 (Composite) Device Subclass: 0 Device Protocol: 0 Device MaxPacketSize: 8 Device VendorID/ProductID: 0x05AC/0x9223 (Apple Inc.) Device Version Number: 0x0114 Number of Configurations: 1 Manufacturer String: 1 "Apple Computer, Inc." Product String: 2 "Apple Cinema HD Display" Serial Number String: 0 (none) Configuration Descriptor Length (and contents): 34 Raw Descriptor (hex) 0000: 09 02 22 00 01 01 00 E0 01 09 04 00 00 01 03 00 Raw Descriptor (hex) 0010: 00 00 09 21 11 01 00 01 22 37 00 07 05 81 03 08 Raw Descriptor (hex) 0020: 00 10 Number of Interfaces: 1 Configuration Value: 1 Attributes: 0xE0 (self-powered, remote wakeup) MaxPower: 2 ma Interface #0 - HID Alternate Setting 0 Number of Endpoints 1 Interface Class: 3 (HID) Interface Subclass; 0 Interface Protocol: 0 HID Descriptor Descriptor Version Number: 0x0111 Country Code: 0 Descriptor Count: 1 Descriptor 1 Type: 0x22 (Report Descriptor) Length (and contents): 55 Raw Descriptor (hex) 0000: 05 80 09 01 A1 01 15 00 26 FF 00 75 08 85 02 96 Raw Descriptor (hex) 0010: 01 01 09 02 B2 02 01 05 82 95 02 85 10 09 10 B1 Raw Descriptor (hex) 0020: 02 25 04 85 D6 09 D6 B1 02 25 07 85 E7 B1 02 26 Raw Descriptor (hex) 0030: FF 00 85 E4 81 02 C0 Parsed Report Descriptor: Usage Page (Monitor) Usage 1 (0x1) Collection (Application) Logical Minimum......... (0) Logical Maximum......... (255) Report Size............. (8) ReportID................ (2) Report Count............ (257) Usage 2 (0x2) Feature................. (Data, Variable, Absolute, No Wrap, Linear, Preferred State, No Null Position, Nonvolatile, Buffered bytes) Usage Page (VESA Virtual Controls) Report Count............ (2) ReportID................ (16) Usage 16 (0x10) Feature................. (Data, Variable, Absolute, No Wrap, Linear, Preferred State, No Null Position, Nonvolatile, Bitfield) Logical Maximum......... (4) ReportID................ (214) Usage 214 (0xd6) Feature................. (Data, Variable, Absolute, No Wrap, Linear, Preferred State, No Null Position, Nonvolatile, Bitfield) Logical Maximum......... (7) ReportID................ (231) Feature................. (Data, Variable, Absolute, No Wrap, Linear, Preferred State, No Null Position, Nonvolatile, Bitfield) Logical Maximum......... (255) ReportID................ (228) Input................... (Data, Variable, Absolute, No Wrap, Linear, Preferred State, No Null Position, Bitfield) End Collection Endpoint 0x81 - Interrupt Input Address: 0x81 (IN) Attributes: 0x03 (Interrupt no synchronization data endpoint) Max Packet Size: 8 Polling Interval: 16 ms