基于OHCI的USB主机 —— USB设备常量定义

USB 设备枚举过程中使用到的常量定义如下：

/*-------------------------------------------------------------------------  * Standard Chapter 9 definition  *-------------------------------------------------------------------------  */ #define GET_STATUS      0x00                                                        #define CLEAR_FEATURE   0x01 #define SET_FEATURE     0x03 #define SET_ADDRESS     0x05 #define GET_DESCRIPTOR  0x06 #define SET_DESCRIPTOR  0x07 #define GET_CONFIG      0x08 #define SET_CONFIG      0x09 #define GET_INTERFACE   0x0a #define SET_INTERFACE   0x0b #define SYNCH_FRAME     0x0c   #define DESC_DEVICE          0x0100 #define DESC_CONFIGURATION   0x0200 #define DESC_STRING          0x0300 #define DESC_INTERFACE       0x0400 #define DESC_ENDPOINT        0x0500   #define USB_BUF_SIZE 512   #define ENUM_DEV_IDLE              0 #define ENUM_DEV_SEND_DEV_DESC_0   1 #define ENUM_DEV_SET_ADDRESS       2 #define ENUM_DEV_GET_DESC_CFG      3 #define ENUM_DEV_FILL_DESC_DEV     4 #define ENUM_DEV_SEND_DEV_DESC_1   5 #define ENUM_DEV_FILL_DESC_SET     6 #define ENUM_DEV_SET_INTERFACE     7 #define ENUM_DEV_SET_CONFIGURATION 8 #define ENUM_DEV_GET_CONFIGURATION 9 #define ENUM_DEV_CHECK_CONFIG      10 #define ENUM_DEV_CHECK_INTERFACE   11 #define ENUM_DEV_WAIT_CMD_OVER     12 #define ENUM_DEV_WAIT_RESET_OVER   13 #define ENUM_DEV_GET_MAX_LUN       14 #define ENUM_DEV_CHECK_MAX_LUN     15 #define ENUM_DEV_RESET_ING         16 #define ENUM_DEV_IDLE_DALAY        17 #define ENUM_DEV_OVER              100   #define USB_CMD_OVER            100   #define DEV_ERROR_TD            1 #define DEV_ERROR_CONFIGURATION    2 #define DEV_ERROR_RESET_TIME_OUT   3   #define USB_DEV_ENUM_OK            1 #define USB_DEV_NOT_CONNECTED      2   #define CC_STALL                4   #define DESC_TYPE_DEVICE        1 #define DESC_TYPE_CONFIG        2 #define DESC_TYPE_INTERFACE        3 #define DESC_TYPE_END_POINT        4   typedef struct _ENUM_USB_DEV {     unsigned char state ;     unsigned char newState ;     unsigned char oldState ;     //unsigned char count;     unsigned char errReason ;     //unsigned int delay; } ENUM_USB_DEV ;