Maxim Integrated 73S12xxF Software - Manual (Page 45)

UG_12xxF_016
73S12xxF Software User Guide
Rev. 1.50 45
unsigned int idProduct; // Always 0x0500
unsigned int Device; // 0x4600;
unsigned char iManufacturer; // 0, TBD;
unsigned char iProduct; // 0, TBD;
unsigned char iSerialNum; // 0, TBD;
unsigned char NumConfigs; // 1, TBD;
};
struct USB_Interface_t
{
unsigned char Length;
// Always 9.
unsigned char DescriptorType; // Always INTERFACE_DESCRIPTOR = 4.
unsigned char InterfaceNumber; // 0.
unsigned char AlternateSetting; // 0.
unsigned char NumEndPoints; // Always NUMBER_OF_EPS - 1 = 3;
unsigned char InterfaceClass; // 0x0B.
unsigned char InterfaceSubClass; // 0.
unsigned char InterfaceProtocol; // 0.
unsigned char iInterface; // 0.
};
#define CLASS 0x0B
//Always 0B for Smart Card Reader
#define SUBCLASS 0
struct USB_EP_t
{
unsigned char Length;
// Always 7.
unsigned char DescriptorType; // Always EP_DESCRIPTOR = 5.
unsigned char EndpointAddress; // (IN or OUT) plus (1 or 2).
unsigned char Attributes; // BULK or INTERRUPT.
unsigned int MaxPacketSize; // 16, 32 or 64.
unsigned char Interval; // 0 for BULK. 10 for INTERRUPT.
};
#define IN
0x80
#define OUT 0x00
#define BULK 0x02
#define INTERRUPT 0x03
#define INTERVAL 10 // Interrupt EndPoint interval in frames (about 10 msec).
struct USB_Config_t
{
unsigned char Length;
// Always 9.
unsigned char DescriptorType; // Always CONFIGURATION_DESCRIPTOR = 2.
unsigned char TotalLengthL; // CONFIG_DESC_TOTAL_SIZE = 93
// (One Interface, three Endpoints).
unsigned char TotalLengthH; // Always 0.
unsigned char NumInterfaces; // NUMBER_OF_INTERFACES = 1.
unsigned char ConfigurationValue; // Always 1.
unsigned char iConfiguration; // Application specific.
unsigned char Attributes; // Application specific.
unsigned char MaxPower; // Application specific.
struct USB_Interface_t I;
};
#define ATTRIBUTES BIT7 | SELF_POWERED
// application specific, self-powered