У меня следующая проблема: У меня есть GPS-устройство Wintec WBT-202, которое может передавать данные о местоположении в режиме реального времени в виде данных NMEA через USB. Внутри этого USB это просто мост USB-последовательный, который работает под Windows с использованием стандартного драйвера usbser.sys
.
Моя проблема - заставить его работать под Mac OS X.
Аппаратное обеспечение USB-мышь USB использует чип Atmel AT91SAM7S256, который также отвечает за интерфейс USB.
Проблема под Mac OS X ничего не происходит. Нет нового символьного устройства, созданного под /dev
, чтобы сделать это устройство доступным.
Под Windows используется стандартный драйвер usbser.sys
. Существует только INF-файл, указывающий идентификаторы vendorID и productID на этот драйвер.
Используя Snoopy Pro в Windows (программное обеспечение USB-анализатора), я знаю, что после правильной инициализации устройства данные отправляются в виде строк ASCII NMEA, и это все, что мне нужно.
Вопрос 1 Существует ли эквивалент usbser.sys
для Mac OS X? Если да, можно ли использовать код без кода для проверки правильности сопоставления драйверов?
Если это не сработает, я буду использовать IOKit из пространства пользователя для отправки и получения сообщений на устройство. У меня все еще есть вопросы о том, как это будет работать в деталях, потому что я не полностью понимаю документацию Apple. Если подключено устройство USB, происходит сопоставление драйверов. что произойдет, если драйвер не найден.
Вопрос 2 Может быть, тогда загружается какой-то универсальный драйвер USB, с которым я могу "общаться" в ядре из пространства пользователя? Как узнать, что загружен нужный драйвер?
Вопрос 3 Я видел, что в WWDC08 был сеанс «Начало работы с I / O Kit». Есть ли способ получить доступ к этому видео сеанса?
Я добавил несколько журналов USBProbe и выдержку из реестра ввода / вывода.
Будем весьма благодарны за любые комментарии о том, как я могу начать, какая документация предоставляет достойное руководство.
Я изучил Внутренние компоненты Mac OS X - внутренние компоненты системы от Амит Сингх, документацию Apple «Начало работы с I / O Kit», «Руководство по основам I / O Kit» и личные данные USB образец.
ПРИЛОЖЕНИЕ
USB-зонд
Full Speed device @ 8 (0xFD360000): ............................................. Communication device: "WINTEC WBT202 CDC"
Port Information: 0x0019
Captive
External Device
Connected
Enabled
Device Descriptor
Descriptor Version Number: 0x0200
Device Class: 2 (Communication)
Device Subclass: 0
Device Protocol: 0
Device MaxPacketSize: 8
Device VendorID/ProductID: 0x03EB/0x6119 (Atmel Corporation)
Device Version Number: 0x0100
Number of Configurations: 1
Manufacturer String: 0 (none)
Product String: 1 "WINTEC WBT202 CDC"
Serial Number String: 0 (none)
Configuration Descriptor
Length (and contents): 67
Raw Descriptor (hex) 0000: 09 02 43 00 02 01 00 C0 32 09 04 00 00 01 02 02
Raw Descriptor (hex) 0010: 00 00 05 24 00 10 01 05 24 01 01 00 04 24 02 02
Raw Descriptor (hex) 0020: 05 24 06 00 01 07 05 83 03 40 00 0A 09 04 01 00
Raw Descriptor (hex) 0030: 02 0A 00 00 00 07 05 01 02 40 00 00 07 05 82 02
Raw Descriptor (hex) 0040: 40 00 00
Number of Interfaces: 2
Configuration Value: 1
Attributes: 0xC0 (self-powered)
MaxPower: 100 ma
Interface #0 - Communications-Control
Alternate Setting 0
Number of Endpoints 1
Interface Class: 2 (Communications-Control)
Interface Subclass; 2
Interface Protocol: 0
Comm Class Header Functional Descriptor
Raw Descriptor (hex) 0000: 05 24 00 10 01
Comm Class Call Management Functional Descriptor
Raw Descriptor (hex) 0000: 05 24 01 01 00
Comm Class Abstract Control Management Functional Descriptor
Raw Descriptor (hex) 0000: 04 24 02 02
Comm Class Union Functional Descriptor
Raw Descriptor (hex) 0000: 05 24 06 00 01
Endpoint 0x83 - Interrupt Input
Address: 0x83 (IN)
Attributes: 0x03 (Interrupt no synchronization data endpoint)
Max Packet Size: 64
Polling Interval: 10 ms
Interface #1 - Communications-Data/Unknown Comm Class Model
Alternate Setting 0
Number of Endpoints 2
Interface Class: 10 (Communications-Data)
Interface Subclass; 0 (Unknown Comm Class Model)
Interface Protocol: 0
Endpoint 0x01 - Bulk Output
Address: 0x01 (OUT)
Attributes: 0x02 (Bulk no synchronization data endpoint)
Max Packet Size: 64
Polling Interval: 0 ms
Endpoint 0x82 - Bulk Input
Address: 0x82 (IN)
Attributes: 0x02 (Bulk no synchronization data endpoint)
Max Packet Size: 64
Polling Interval: 0 ms
IO Registry
8: WINTEC WBT202 CDC@fd360000 <class IOUSBDevice>
AppleUSBCDC <class AppleUSBCDC>
IOUSBInterface@0 <class IOUSBInterface>
AppleUSBCDCACMControl <class AppleUSBCDCACMControl>
IOUSBInterface@1 <class IOUSBInterface>
bcdDevice 256 (0x100)
bDeviceClass 2 (0x2)
bDeviceProtocol 0 (0x0)
bDeviceSubClass 0 (0x0)
bMaxPacketSize0 8 (0x8)
bNumConfigurations 1 (0x1)
Bus Power Available 250 (0xfa)
Device Speed 1 (0x1)
idProduct 24857 (0x6119)
idVendor 1003 (0x3eb)
iManufacturer 0 (0x0)
IOCFPlugInTypes
9dc7b780-9ec0-11d4-a54f-000a27052861 IOUSBFamily.kext/Contents/PlugIns/IOUSBLib.bundle
IOGeneralInterest IOCommand is not serializable
IOUserClientClass IOUSBDeviceUserClientV2
iProduct 1 (0x1)
iSerialNumber 0 (0x0)
locationID -46792704 (0xfd360000)
Low Power Displayed No
non-removable yes
PortNum 6 (0x6)
Requested Power 50 (0x32)
sessionID 1167822359 (0x459b8e17459b8e17)
USB Address 5 (0x5)
USB Product Name WINTEC WBT202 CDC
Вход USB-зонда при подключении устройства
12.719 [5] AppleUSBHub[0x6805a00]::ProcessStatusChanged found (0x 40) in statusChangedBitmap
12.719 [3] AppleUSBHub[0x6805a00]::ChangeRaisedPowerState(+) now (1)
12.719 [5] AppleUSBHubPort[0x6807200]::PortStatusChangedHandler: port 6 obtained runLock
12.719 [5] AppleUSBHubPort[0x6807200]::PortStatusChangedHandler: calling GetPortStatus for port 6
12.719 [5] AppleUSBHub[0x6805a00]::powerChangeDone - spawning _checkForActivePortsThread
12.719 [5] AppleUSBEHCI[0x65ea000]::FindControlBulkEndpoint (inactive) - linking to active list: 65997c0
12.719 [5] AppleUSBHubPort[0x6807200]::PortStatusChangedHandler - Hub 0xfd300000 port 6 - Initial status(0x0101)/change(0x0001)
12.719 [5] AppleUSBHubPort[0x6807200]::PortStatusChangedHandler - port 6 - change 4 clearing feature 0x10.
12.719 [5] AppleUSBHub[0x6805a00]::ClearPortFeature port/feature (60010) - clearing
12.719 [5] AppleUSBHubPort[0x6807200]::PortStatusChangedHandler - port 6 - status(0x0101) - change(0x0000) - before call to (4) handler function
12.719 [5] AppleUSBHubPort[0x6807200]::DefaultConnectionChangeHandler - handling port 6 changes (101,0).
12.719 [5] AppleUSBHubPort[0x6807200]::DefaultConnectionChangeHandler port (6) - waiting 100 ms before asserting reset
12.819 [5] AppleUSBHubPort[0x6807200]::DefaultConnectionChangeHandler - port 6 - no existing device found on port
12.820 [4] AppleUSBHubPort[0x6807200]::DefaultConnectionChangeHandler port 6 status(0101)/change(0000) - no error from GetPortStatus
12.820 [5] AppleUSBHubPort[0x6807200]::DefaultConnectionChangeHandler - port 6 - device detected, calling AddDevice
12.820 [3] AppleUSBHub[0x6805a00]::ChangeRaisedPowerState(+) now (2)
12.820 [5] AppleUSBHubPort[0x6807200]::DefaultConnectionChangeHandler - port 6 done, ending.
12.820 [5] AppleUSBHubPort[0x6807200]::PortStatusChangedHandler - port 6 - err (0) on return from call to (4) handler function
12.820 [5] AppleUSBHubPort[0x6807200]::PortStatusChangedHandler: calling GetPortStatus for port 6
12.820 [5] ***** AppleUSBHubPort[0x6807200]::AddDevice - port 6 on hub at 0xfd300000 - start
12.820 [5] AppleUSBHubPort[0x6807200]::PortStatusChangedHandler - Hub 0xfd300000 port 6 - Initial status(0x0101)/change(0x0000)
12.820 [5] AppleUSBHubPort[0x6807200]::PortStatusChangedHandler - port 6 - err = 0 - done, releasing _runLock
12.820 [3] AppleUSBHub[0x6805a00]::ChangeRaisedPowerState(-) now (1)
12.820 [3] AppleUSBHub[0x6805a00]::DecrementOutstandingIO(269), outstandingIO(0), _interruptReadPending(false) - rearming read
12.820 [5] AppleUSBHub[0x6805a00]::DecrementOutstandingIO(269) - spawning _checkForActivePortsThread
12.820 [5] ***** AppleUSBHubPort[0x6807200]::AddDevice - port 6 on hub at 0xfd300000 - bus 0x65ea000 - acquiring dev zero lock
12.820 [5] AppleUSBEHCI[0x65ea000]::ProtectedDevZeroLock - about to obtain device zero lock
12.820 [5] AppleUSBEHCI[0x65ea000]::ProtectedDevZeroLock - not already locked - obtaining
12.820 [5] AppleUSBEHCI[0x65ea000]::ProtectedDevZeroLock - setting _devZeroLock to true
12.820 [5] AppleUSBEHCI[0x65ea000]: Acquired Device Zero
12.820 [5] ***** AppleUSBHubPort[0x6807200]::AddDevice - port 6 on hub at 0xfd300000 - resetting port
12.820 [5] AppleUSBHub[0x6805a00]::SetPortFeature port/feature (60004) - setting
12.821 [5] ***** AppleUSBHubPort[0x6807200]::AddDevice - port 6 on hub at 0xfd300000 - (err = 0) done - returning .
12.821 [3] AppleUSBHub[0x6805a00]::ChangeRaisedPowerState(-) now (0)
12.879 [5] AppleUSBHub[0x6805a00]::ProcessStatusChanged found (0x 40) in statusChangedBitmap
12.879 [3] AppleUSBHub[0x6805a00]::ChangeRaisedPowerState(+) now (1)
12.879 [5] AppleUSBHubPort[0x6807200]::PortStatusChangedHandler: port 6 obtained runLock
12.879 [5] AppleUSBHubPort[0x6807200]::PortStatusChangedHandler: delaying 100ms before first GetPortStatus after a reset of port 6
12.879 [5] AppleUSBHub[0x6805a00]::powerChangeDone - spawning _checkForActivePortsThread
12.979 [5] AppleUSBHubPort[0x6807200]::PortStatusChangedHandler: calling GetPortStatus for port 6
12.979 [5] AppleUSBHubPort[0x6807200]::PortStatusChangedHandler - Hub 0xfd300000 port 6 - Initial status(0x0103)/change(0x0010)
12.979 [5] AppleUSBHubPort[0x6807200]::PortStatusChangedHandler - port 6 - change 1 clearing feature 0x14.
12.979 [5] AppleUSBHub[0x6805a00]::ClearPortFeature port/feature (60014) - clearing
12.979 [5] AppleUSBHubPort[0x6807200]::PortStatusChangedHandler - port 6 - status(0x0103) - change(0x0000) - before call to (1) handler function
12.979 [5] ***** AppleUSBHubPort[0x6807200]::AddDeviceResetChangeHandler - port 6 on hub at 0xfd300000 - start - status(0x0103) change (0x0000)
12.979 [5] **1** AppleUSBHubPort[0x6807200]::AddDeviceResetChangeHandler - port 6 on hub at 0xfd300000 - delaying 10 ms
12.989 [5] **2** AppleUSBHubPort[0x6807200]::AddDeviceResetChangeHandler - port 6 on hub at 0xfd300000 - found full speed device
12.989 [5] **2** AppleUSBHubPort[0x6807200]::AddDeviceResetChangeHandler - port 6 on hub at 0xfd300000 - configuring dev zero
12.989 [5] AppleUSBEHCI[0x65ea000]::ConfigureDeviceZero, new method called with hub:3, port:6
12.989 [5] AppleUSBEHCI[0x65ea000]::CreateDevice, high speed ancestor hub:3, port:6
12.989 [5] AppleUSBEHCI[0x65ea000]::DoCreateEP, high speed ancestor hub:3, port:6
12.989 [3] AppleUSBEHCI[0x65ea000]::UIMCreateControlEndpoint(0, 0, 8, 1 @(3, 6))
12.989 [5] **3** AppleUSBHubPort[0x6807200]::AddDeviceResetChangeHandler - port 6 on hub at 0xfd300000 - getting dev zero desc
12.990 [5] **3** AppleUSBHubPort[0x6807200]::AddDeviceResetChangeHandler - port 6, using 8 for maxPacketSize
12.992 [5] **5** AppleUSBHubPort[0x6807200]::AddDeviceResetChangeHandler - port 6, Releasing DeviceZero after successful SetAddress to 5
12.992 [5] AppleUSBEHCI[0x65ea000]::UIMDeleteEndpoint: unlinking async endpoint
12.993 [5] AppleUSBEHCI[0x65ea000]::UIMDeleteEndpoint: Deallocating 0x68bd700
12.993 [5] AppleUSBEHCI[0x65ea000]::ProtectedDevZeroLock - about to release device zero lock
12.993 [5] AppleUSBEHCI[0x65ea000]::ProtectedDevZeroLock - releasing lock
12.993 [5] AppleUSBEHCI[0x65ea000]::ProtectedDevZeroLock - wakeup done
12.993 [5] AppleUSBEHCI[0x65ea000]:: Released Device Zero
12.993 [5] AppleUSBEHCI[0x65ea000]::CreateDevice, new method called with hub:3, port:6
12.993 [5] AppleUSBEHCI[0x65ea000]::CreateDevice, high speed ancestor hub:3, port:6
12.993 [5] AppleUSBEHCI[0x65ea000]::CreateDevice: addr=5, speed=full, power=500
12.993 [5] IOUSBDevice @ 5 (500mA available, full speed)
12.993 [5] AppleUSBEHCI[0x65ea000]::DoCreateEP, high speed ancestor hub:3, port:6
12.993 [3] AppleUSBEHCI[0x65ea000]::UIMCreateControlEndpoint(5, 0, 8, 1 @(3, 6))
12.993 [5] IOUSBDevice[0xd335c00]::GetDeviceDescriptor (size 18)
12.994 [5] IOUSBDevice[0xd335c00]::GetStringDescriptor Got string descriptor 1, length 36, got 36
12.994 [5] **10** AppleUSBHubPort[0x6807200]::AddDeviceResetChangeHandler - port 6, at addr: 5, Successful
12.994 [5] AppleUSBHub[0x6805a00]::GetPortInformation for port[6]
12.995 [5] WINTEC WBT202 CDC[0xd335c00]::GetDeviceInformation Hub device name is HubDevice at USB address 3
12.995 [5] AppleUSBHub[0x6656800]::GetPortInformation for port[3]
12.995 [5] AppleUSBHubPort[0x6807200]::AddDeviceResetChangeHandler - Port 6 of Hub at 0xfd300000 (USB Address: 5), calling registerService for device WINTEC WBT202 CDC
12.995 [5] AppleUSBHubPort[0x6807200]::AddDeviceResetChangeHandler - port 6, err = 0, ALL DONE
12.995 [5] AppleUSBHubPort[0x6807200]::PortStatusChangedHandler - port 6 - err (0) on return from call to (1) handler function
12.995 [5] AppleUSBHubPort[0x6807200]::PortStatusChangedHandler - port 6 - err = 0 - done, releasing _runLock
12.995 [3] AppleUSBHub[0x6805a00]::ChangeRaisedPowerState(-) now (0)
12.995 [3] AppleUSBHub[0x6805a00]::DecrementOutstandingIO(274), outstandingIO(0), _interruptReadPending(false) - rearming read
12.995 [5] AppleUSBHub[0x6805a00]::DecrementOutstandingIO(274) - spawning _checkForActivePortsThread
12.999 [5] Finding device driver for WINTEC WBT202 CDC, matching personality using com.apple.driver.AppleUSBCDC, score: 69000, wildCard = 0
12.999 [5] Finding device driver for WINTEC WBT202 CDC, matching personality using com.apple.iokit.IOUSBUserClient, score: 106999, wildCard = 3
13.002 [5] WINTEC WBT202 CDC[0xd335c00]::handleOpen - [0xdd78880] is not an IOUSBInterface
13.002 [5] WINTEC WBT202 CDC[0xd335c00]::TakeGetConfigLock - calling through to ChangeGetConfigLock
13.002 [5] WINTEC WBT202 CDC[0xd335c00]::ChangeGetConfigLock - setting _GETCONFIGLOCK to true
13.002 [5] WINTEC WBT202 CDC[0xd335c00]::GetFullConfigurationDescriptor - Index (0) - getting first 4 bytes of config descriptor
13.002 [5] WINTEC WBT202 CDC[0xd335c00]::GetConfigDescriptor (length: 4)
13.002 [5] WINTEC WBT202 CDC[0xd335c00]::GetFullConfigurationDescriptor - Index (0) - getting full 67 bytes of config descriptor
13.002 [5] WINTEC WBT202 CDC[0xd335c00]::GetConfigDescriptor (length: 67)
13.003 [5] WINTEC WBT202 CDC[0xd335c00]::ReleaseGetConfigLock - calling through to ChangeGetConfigLock
13.003 [5] WINTEC WBT202 CDC[0xd335c00]::ChangeGetConfigLock - setting _GETCONFIGLOCK to false and calling commandWakeup
13.503 [5] WINTEC WBT202 CDC[0xd335c00]::TerminateInterfaces interfaceList 0 terminate: 1
13.503 [5] WINTEC WBT202 CDC[0xd335c00]::SetConfiguration to 1
13.504 [5] WINTEC WBT202 CDC[0xd335c00]::SetConfiguration Found InterfaceDescription[0] = 0x68bc889
13.504 [5] WINTEC WBT202 CDC[0xd335c00]::SetConfiguration Found InterfaceDescription[1] = 0x68bc8ac
13.504 [5] WINTEC WBT202 CDC[0xd335c00]::RegisterInterfaces interfaceArray 0x6de9b00
13.504 [5] WINTEC WBT202 CDC[0xd335c00]::RegisterInterfaces matching to interface = 0x8261700
13.553 [5] Finding driver for interface #0 of WINTEC WBT202 CDC, matching personality using com.apple.iokit.IOUSBUserClient, score: 104999, wildCard = 5
13.567 [5] Finding driver for interface #0 of WINTEC WBT202 CDC, matching personality using com.apple.driver.AppleUSBCDCACMControl, score: 50000, wildCard = 0
13.570 [5] AppleUSBEHCI[0x65ea000]::DoCreateEP, high speed ancestor hub:3, port:6
13.570 [5] AppleUSBEHCI[0x65ea000]: UIMCreateInterruptEndpoint endpoint does NOT exist (this is normal)
13.570 [5] AppleUSBEHCI[0x65ea000]::AllocateInterruptBandwidth - pED[0x68bd780] _speed(1)
13.570 [3] AppleUSBEHCITTInfo[0x682b400]::AllocatePeriodicBandwidth: pSPE[0x6f8ae40]
13.570 [5] AppleUSBEHCISplitPeriodicEndpoint[0x6f8ae40]::FindStartFrameAndStartTime - _FSBytesUsed (78)
13.570 [5] AppleUSBEHCISplitPeriodicEndpoint[0x6f8ae40]::FindStartFrameAndStartTime - using Start Time entry found - _startFrame(1) _startTime(36)
13.570 [5] AppleUSBEHCI[0x65ea000]::AllocateInterruptBandwidth - returning 0x0(success)
13.571 [5] AppleUSBHub[0x6805a00]::powerChangeDone - spawning _checkForActivePortsThread
13.573 [5] WINTEC WBT202 CDC[0xd335c00]::RegisterInterfaces matching to interface = 0xd337700
13.621 [5] Finding driver for interface #1 of WINTEC WBT202 CDC, matching personality using com.apple.iokit.IOUSBUserClient, score: 104999, wildCard = 5
13.636 [5] Finding driver for interface #1 of WINTEC WBT202 CDC, matching personality using com.apple.driver.AppleUSBCDCACMData, score: 50000, wildCard = 0
14.024 [5] Finding driver for interface #1 of WINTEC WBT202 CDC, matching personality using com.apple.driver.AppleUSBCDCACMData, score: 50000, wildCard = 0
14.075 [5] Finding driver for interface #1 of WINTEC WBT202 CDC, matching personality using com.apple.iokit.IOUSBUserClient, score: 104999, wildCard = 5
14.089 [5] Finding driver for interface #1 of WINTEC WBT202 CDC, matching personality using com.apple.driver.AppleUSBCDCACMData, score: 50000, wildCard = 0
14.090 [5] Finding driver for interface #1 of WINTEC WBT202 CDC, matching personality using com.apple.driver.AppleUSBCDCECMData, score: 50000, wildCard = 0
14.266 [5] Finding driver for interface #1 of WINTEC WBT202 CDC, matching personality using com.apple.driver.AppleUSBCDCECMData, score: 50000, wildCard = 0
14.315 [5] Finding driver for interface #1 of WINTEC WBT202 CDC, matching personality using com.apple.iokit.IOUSBUserClient, score: 104999, wildCard = 5
14.330 [5] Finding driver for interface #1 of WINTEC WBT202 CDC, matching personality using com.apple.driver.AppleUSBCDCACMData, score: 50000, wildCard = 0
14.330 [5] Finding driver for interface #1 of WINTEC WBT202 CDC, matching personality using com.apple.driver.AppleUSBCDCECMData, score: 50000, wildCard = 0
14.334 [5] WINTEC WBT202 CDC[0xd335c00]::SetConfiguration returning success
EDIT: добавлена выдержка из файла журнала из console.app после подключения устройства
16.02.11 09:05:55 kernel 0 0 AppleUSBCDCACMControl: getFunctionalDescriptors - Descriptors are incorrect, checking...
16.02.11 09:05:55 kernel 0 1 AppleUSBCDCACMData: start - Find CDC driver for data interface failed