Установка драйвера (libacsccid) для работы с NFC-картридером ACR122 под Ubuntu 14.04

Файлы библиотеки libpcsclite уже предустановлены в дистрибутиве Ubuntu (библиотека /lib/x86_64-linux-gnu/libpcsclite.so.1.0.0 и символьная ссылка /lib/x86_64-linux-gnu/libpcsclite.so). Устанавливаем необходимые пакеты демона (pcscd) и драйвера (libacsccid) из репозитария Ubuntu. Есть два драйвера, два пакета libacsccid (поддерживающий большее количество карт фирмы ACS и тестирующийся ее инженерами https://lists.debian.org/debian-devel/2011/05/msg00705.html) и libccid (дефолный). Ставим демон pcscd и библиотеку libacsccid из репозитария:

sudo apt-get install pcscd
sudo apt-get install libacsccid1

Команда lsusb (sudo lsusb) видит картридер ACR122:

Bus 002 Device 002: ID 058f:6362 Alcor Micro Corp. Flash Card Reader/Writer
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 008 Device 002: ID 04d9:1702 Holtek Semiconductor, Inc. 
Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 003: ID 072f:2200 Advanced Card Systems, Ltd 
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

Остановим запущенный демон pcscd (sudo service pcscd stop или sudo killall pcscd). Запустим демон в режиме отладки (sudo /usr/sbin/pcscd -fd), чтобы увидеть, что драйвер картридера libacsccid корректно загрузился при подключении устройства:

00000000 debuglog.c:269:DebugLogSetLevel() debug level=debug
00000150 configfile.l:254:DBGetReaderListDir() Parsing conf directory: /etc/reader.conf.d
00000034 configfile.l:307:DBGetReaderList() Parsing conf file: /etc/reader.conf.d/libccidtwin
00000059 configfile.l:266:DBGetReaderListDir() Skipping non regular file: .
00000019 configfile.l:266:DBGetReaderListDir() Skipping non regular file: ..
00000020 pcscdaemon.c:545:main() pcsc-lite 1.8.10 daemon ready.
00001981 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0001, path: /dev/bus/usb/003/001
00000157 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0001, path: /dev/bus/usb/004/001
00000149 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0001, path: /dev/bus/usb/005/001
00000148 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0002, path: /dev/bus/usb/001/001
00000140 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0001, path: /dev/bus/usb/006/001
00000140 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0001, path: /dev/bus/usb/007/001
00000111 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0001, path: /dev/bus/usb/007/001
00000116 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x072F, PID: 0x2200, path: /dev/bus/usb/007/003
00000040 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x072F, PID: 0x2200, path: /dev/bus/usb/007/003
00000017 hotplug_libudev.c:321:HPAddDevice() Adding USB device: ACS ACR122U
00000038 readerfactory.c:989:RFInitializeReader() Attempting startup of ACS ACR122U 00 00 using /usr/lib/pcsc/drivers/ifd-acsccid.bundle/Contents/Linux/libacsccid.so
00000210 readerfactory.c:874:RFBindFunctions() Loading IFD Handler 3.0
00000041 ifdhandler.c:2328:init_driver() Driver version: 1.0.5
00000248 ifdhandler.c:2341:init_driver() LogLevel: 0x0003
00001316 ifdhandler.c:2361:init_driver() DriverOptions: 0x00C0
00000221 ifdhandler.c:2388:init_driver() ACR38CardVoltage: 0
00000210 ifdhandler.c:2395:init_driver() ACR38CardType: 0
00000016 ifdhandler.c:94:IFDHCreateChannelByName() lun: 0, device: usb:072f/2200:libudev:0:/dev/bus/usb/007/003
00094665 ccid_usb.c:375:OpenUSBByName() Manufacturer: Advanced Card Systems Ltd.
00000199 ccid_usb.c:385:OpenUSBByName() ProductString: ACS CCID driver
00000191 ccid_usb.c:391:OpenUSBByName() Copyright: This driver is protected by terms of the GNU Lesser General Public License version 2.1, or (at your option) any later version.
00012154 ccid_usb.c:643:OpenUSBByName() Can't claim interface 007/003: Device or resource busy
00025410 ifdhandler.c:118:IFDHCreateChannelByName() failed
00000039 readerfactory.c:1020:RFInitializeReader() Open Port 0x200000 Failed (usb:072f/2200:libudev:0:/dev/bus/usb/007/003)
00000015 readerfactory.c:312:RFAddReader() ACS ACR122U init failed.
00000018 readerfactory.c:535:RFRemoveReader() UnrefReader() count was: 1
00000013 readerfactory.c:1040:RFUnInitializeReader() Attempting shutdown of ACS ACR122U 00 00.
00000012 readerfactory.c:911:RFUnloadReader() Unloading reader driver.
00000238 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0001, path: /dev/bus/usb/008/001
00000126 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0001, path: /dev/bus/usb/008/001
00000121 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x04D9, PID: 0x1702, path: /dev/bus/usb/008/002
00000119 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x04D9, PID: 0x1702, path: /dev/bus/usb/008/002
00000150 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0002, path: /dev/bus/usb/002/001
00000116 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0002, path: /dev/bus/usb/002/001
00000118 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x058F, PID: 0x6362, path: /dev/bus/usb/002/002
^C31211962 pcscdaemon.c:726:signal_trap() Received signal: 2
00000017 pcscdaemon.c:745:signal_trap() Preparing for suicide
01000081 readerfactory.c:1273:RFCleanupReaders() entering cleaning function
00000026 winscard_svc.c:130:ContextsDeinitialize() remaining threads: 0

00000007 pcscdaemon.c:670:at_exit() cleaning /var/run/pcscd

Возникает ошибка: "Can't claim interface 007/003: Device or resource busy".

При загрузке ядра мы получаем следующие сообщения инициализации USB (dmesg | grep usb):

...
[ 9636.196045] usb 7-2: new full-speed USB device number 2 using uhci_hcd
[ 9636.379053] usb 7-2: New USB device found, idVendor=072f, idProduct=2200
[ 9636.379057] usb 7-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 9636.379059] usb 7-2: Product: ACR122U PICC Interface
[ 9636.379061] usb 7-2: Manufacturer: ACS
[ 9636.793182] usbcore: registered new interface driver pn533

...

Картридер неправильно опознается ядром как устройство pn533 (usbcore: registered new interface driver pn533). Как пишут на форуме, в ядре версии  (>= 3.1) появилась своя подсистема NFC с своими драйверами, которые конфликтуют с драйверами CCID самого разработчика pscslite
Ludovic Rousseau. Решение проблемы состоит в том, чтобы выгрузить и отменить загрузку драйвера устройства pn533 (можно ещё залезть в сборку Device Tree ядра и отключить драйвер там).

Формируем конфигурационный файл, запрещающий загрузку драйвера pn533:

sudo nano /etc/modprobe.d/blacklist-libnfc.conf

Добавляем в него:

blacklist pn533

После перезагрузки системы на BBB вызов команды sudo /usr/sbin/pcscd -fd выводит следующее:

00000000 debuglog.c:269:DebugLogSetLevel() debug level=debug
00000097 configfile.l:254:DBGetReaderListDir() Parsing conf directory: /etc/reader.conf.d
00000023 configfile.l:307:DBGetReaderList() Parsing conf file: /etc/reader.conf.d/libccidtwin
00000039 configfile.l:266:DBGetReaderListDir() Skipping non regular file: .
00000012 configfile.l:266:DBGetReaderListDir() Skipping non regular file: ..
00000012 pcscdaemon.c:545:main() pcsc-lite 1.8.10 daemon ready.
00001284 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0001, path: /dev/bus/usb/003/001
00000100 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0001, path: /dev/bus/usb/004/001
00000093 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0001, path: /dev/bus/usb/005/001
00000092 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0002, path: /dev/bus/usb/001/001
00000090 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0001, path: /dev/bus/usb/006/001
00000089 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0001, path: /dev/bus/usb/007/001
00000069 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0001, path: /dev/bus/usb/007/001
00000073 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x072F, PID: 0x2200, path: /dev/bus/usb/007/002
00000026 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x072F, PID: 0x2200, path: /dev/bus/usb/007/002
00000012 hotplug_libudev.c:321:HPAddDevice() Adding USB device: ACS ACR122U
00000023 readerfactory.c:989:RFInitializeReader() Attempting startup of ACS ACR122U 00 00 using /usr/lib/pcsc/drivers/ifd-acsccid.bundle/Contents/Linux/libacsccid.so
00000129 readerfactory.c:874:RFBindFunctions() Loading IFD Handler 3.0
00000027 ifdhandler.c:2328:init_driver() Driver version: 1.0.5
00000150 ifdhandler.c:2341:init_driver() LogLevel: 0x0003
00000130 ifdhandler.c:2361:init_driver() DriverOptions: 0x00C0
00000128 ifdhandler.c:2388:init_driver() ACR38CardVoltage: 0
00000128 ifdhandler.c:2395:init_driver() ACR38CardType: 0
00000012 ifdhandler.c:94:IFDHCreateChannelByName() lun: 0, device: usb:072f/2200:libudev:0:/dev/bus/usb/007/002
00178155 ccid_usb.c:375:OpenUSBByName() Manufacturer: Advanced Card Systems Ltd.
00000160 ccid_usb.c:385:OpenUSBByName() ProductString: ACS CCID driver
00000122 ccid_usb.c:391:OpenUSBByName() Copyright: This driver is protected by terms of the GNU Lesser General Public License version 2.1, or (at your option) any later version.
00007615 ccid_usb.c:650:OpenUSBByName() Found Vendor/Product: 072F/2200 (ACS ACR122U)
00000015 ccid_usb.c:652:OpenUSBByName() Using USB bus/device: 007/002
00002182 ccid_usb.c:1368:get_data_rates() IFD does not support GET_DATA_RATES request: Success
01013513 ifdhandler.c:220:IFDHCreateChannelByName() dwFeatures: 0x00020040
00000019 ifdhandler.c:221:IFDHCreateChannelByName() wLcdLayout: 0x0000
00000005 ifdhandler.c:222:IFDHCreateChannelByName() bPINSupport: 0x00
00000005 ifdhandler.c:223:IFDHCreateChannelByName() dwMaxCCIDMessageLength: 271
00000004 ifdhandler.c:224:IFDHCreateChannelByName() dwMaxIFSD: 256
00000005 ifdhandler.c:225:IFDHCreateChannelByName() dwDefaultClock: 4000
00000005 ifdhandler.c:226:IFDHCreateChannelByName() dwMaxDataRate: 250000
00000004 ifdhandler.c:227:IFDHCreateChannelByName() bMaxSlotIndex: 0
00000005 ifdhandler.c:228:IFDHCreateChannelByName() bCurrentSlotIndex: 0
00000017 ifdhandler.c:229:IFDHCreateChannelByName() bInterfaceProtocol: 0x00
00000005 ifdhandler.c:230:IFDHCreateChannelByName() bNumEndpoints: 3
00000004 ifdhandler.c:231:IFDHCreateChannelByName() bVoltageSupport: 0x07
00000009 ifdhandler.c:536:IFDHGetCapabilities() tag: 0xFB3, usb:072f/2200:libudev:0:/dev/bus/usb/007/002 (lun: 0)
00000006 readerfactory.c:327:RFAddReader() Using the pcscd polling thread
00015973 ifdhandler.c:536:IFDHGetCapabilities() tag: 0xFAE, usb:072f/2200:libudev:0:/dev/bus/usb/007/002 (lun: 0)
00000018 ifdhandler.c:631:IFDHGetCapabilities() Reader supports 1 slot(s)
00000195 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0001, path: /dev/bus/usb/008/001
00000108 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0001, path: /dev/bus/usb/008/001
00000111 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x04D9, PID: 0x1702, path: /dev/bus/usb/008/002
00000106 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x04D9, PID: 0x1702, path: /dev/bus/usb/008/002
00000140 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0002, path: /dev/bus/usb/002/001
00000103 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x1D6B, PID: 0x0002, path: /dev/bus/usb/002/001
00000106 hotplug_libudev.c:269:get_driver() Looking for a driver for VID: 0x058F, PID: 0x6362, path: /dev/bus/usb/002/002
00000047 readerfactory.c:1330:RFWaitForReaderInit() Waiting init for reader: ACS ACR122U 00 00
00010073 readerfactory.c:1330:RFWaitForReaderInit() Waiting init for reader: ACS ACR122U 00 00
00010079 readerfactory.c:1330:RFWaitForReaderInit() Waiting init for reader: ACS ACR122U 00 00
00010078 readerfactory.c:1330:RFWaitForReaderInit() Waiting init for reader: ACS ACR122U 00 00
00002745 ifdhandler.c:1355:IFDHPowerICC() action: PowerUp, usb:072f/2200:libudev:0:/dev/bus/usb/007/002 (lun: 0)
00001991 eventhandler.c:266:EHStatusHandlerThread() powerState: POWER_STATE_POWERED
00000014 Card ATR: 3B 8F 80 01 80 4F 0C A0 00 00 03 06 03 00 01 00 00 00 00 6A 
00429759 ifdhandler.c:1355:IFDHPowerICC() action: PowerDown, usb:072f/2200:libudev:0:/dev/bus/usb/007/002 (lun: 0)
00001995 eventhandler.c:455:EHStatusHandlerThread() powerState: POWER_STATE_UNPOWERED
00011372 ccid_usb.c:1485:InterruptRead() Reader: 007/002
00000018 ccid_usb.c:1503:InterruptRead() Slot 0: 0x00

Для работы с библиотекой libpcsclite потребуются хедеры (pcsclite.h и другие). Необходимые заголовочные файлы включены в пакет libpcsclite-dev. Установив его (sudo apt-get install libpcsclite-dev), мы получим файлы pcsclite.h, winscard.h, wintypes.h в папке /usr/include/PCSC.

Для настройки проекта Qt (pro-файла) для работы с библиотекой libpcsclite необходимо указать подключение библиотеки, добавить указанные пути к библиотеке и хедерам:

unix:{
  INCLUDEPATH += /usr/include/PCSC
  LIBS += -L"/lib/x86_64-linux-gnu/" -lpcsclite
}