I'm really confused to get a firmware form my smart card reader. My smart card reader is ACR122U. This is my program in QT to read my smart card reader firmware.
#define BULK_EP_OUT 0x02
#define BULK_EP_IN 0x82
QByteArray readFirmware()
{
QByteArray array;
array.append(sendByte(0xFF)); //class
array.append(sendByte(0x00)); //INS
array.append(sendByte(0x48)); //P1
array.append(sendByte(0x00)); //P2
array.append(sendByte(0x00)); //Le
/*for(int i=0; i<59; i++)
{
array.append(sendByte(0x00));
}*/
return array;
}
void WriteSmartCard()
{
int rc=0, claim=0;
rc = libusb_init(NULL);
if(rc < 0)
qDebug() << "failed to initialise libusb.";
libusb_device_handle *handle = NULL;
handle = libusb_open_device_with_vid_pid(NULL, 0x072F, 0x2200);
if(handle == NULL)
qDebug() << "Error in device opening!";
else
qDebug() << "Device opened.";
libusb_set_configuration(handle, 1); // set device to be I/O
if(libusb_kernel_driver_active(handle, 0) == 1)
{
qDebug() << "Kernel driver is active. Libusb cannot peform to be I/O.";
if(libusb_detach_kernel_driver(handle, 0) == 0)
qDebug() << "Kernel driver detached!";
}
else
qDebug() << "No kernel driver is active. Libusb ready to be I/O.";
claim = libusb_claim_interface(handle, 0);
if(claim == 0)
qDebug() << "Claim interface.";
else
qDebug() << "Cannot claim interface.";
// Communicate
int nbytes=256;
unsigned char *my_string1=0, *my_string2=0;
int transferred=0;
my_string1 = (unsigned char *) malloc(nbytes+1);
my_string2 = (unsigned char *) malloc(nbytes+1);
QByteArray dataSend = readFirmware();
my_string1 = reinterpret_cast<unsigned char*>(dataSend.data());
claim = libusb_bulk_transfer(handle, BULK_EP_OUT, my_string1, 5, &transferred, 5000);
if(claim == 0 && transferred == 5)
{
qDebug() << "write successful";
qDebug() << "Returned with : " + QString::number(claim);
qDebug() << "How many bytes to be written : " + QString::number(transferred);
for(int j=0; j<transferred; j++)
{
qDebug() << sendByte(my_string1[j]).toHex();
}
}
else
{
qDebug() << "write error!";
}
claim = libusb_bulk_transfer(handle, BULK_EP_IN, my_string2, 64, &transferred, 5000);
if(claim == 0)
{
qDebug() << "Returned with : " + QString::number(claim);
qDebug() << "How many bytes to be written : " + QString::number(transferred);
for(int j=0; j<transferred; j++)
{
qDebug() << sendByte(my_string2[j]).toHex();
}
}
else
{
qDebug() << "Read error.";
qDebug() << "Returned with : " + QString::number(claim);
qDebug() << "How many bytes to be written : " + QString::number(transferred);
}
claim = libusb_release_interface(handle, 0);
libusb_close(handle);
libusb_exit(NULL);
}
I run this program in terminal. I have answer "write successful" and "Read error." How can i solve this??
when i check with lsusb -v in terminal i get this,
Bus 001 Device 010: ID 072f:2200 Advanced Card Systems, Ltd
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x072f Advanced Card Systems, Ltd
idProduct 0x2200
bcdDevice 2.14
iManufacturer 1
iProduct 2
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 93
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 200mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 11 Chip/SmartCard
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
ChipCard Interface Descriptor:
bLength 54
bDescriptorType 33
bcdCCID 1.00
nMaxSlotIndex 0
bVoltageSupport 7 5.0V 3.0V 1.8V
dwProtocols 2 T=1
dwDefaultClock 4000
dwMaxiumumClock 4000
bNumClockSupported 0
dwDataRate 10752 bps
dwMaxDataRate 250000 bps
bNumDataRatesSupp. 0
dwMaxIFSD 256
dwSyncProtocols 00000000
dwMechanical 00000000
dwFeatures 00020040
Auto parameter negotation made by CCID
Short APDU level exchange
dwMaxCCIDMsgLen 271
bClassGetResponse 00
bClassEnvelope 00
wlcdLayout none
bPINSupport 0
bMaxCCIDBusySlots 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 50
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Am i wrong with endpoint address for read and write to my smart card?? Do i have some mistake with my protocol??
