usbPrinter.h
上传用户:nvosite88
上传日期:2007-01-17
资源大小:4983k
文件大小:1k
- /* usbPrinter.h - Class-specific definitions for USB printers */
- /* Copyright 2000 Wind River Systems, Inc. */
- /*
- Modification history
- --------------------
- 01a,,rcb First.
- */
- #ifndef __INCusbPrinterh
- #define __INCusbPrinterh
- #ifdef __cplusplus
- extern "C" {
- #endif
- /* defines */
- /* USB PRINTER subclass codes */
- #define USB_SUBCLASS_PRINTER 0x01
- /* USB PRINTER protocol codes */
- #define USB_PROTOCOL_PRINTER_UNIDIR 0x01
- #define USB_PROTOCOL_PRINTER_BIDIR 0x02
- /* USB PRINTER class-specific requests */
- #define USB_REQ_PRN_GET_DEVICE_ID 0x00
- #define USB_REQ_PRN_GET_PORT_STATUS 0x01
- #define USB_REQ_PRN_SOFT_RESET 0x02
- /* USB_PRINTER_PORT_STATUS.status bit definitions */
- #define USB_PRN_STS_PAPER_EMPTY 0x20
- #define USB_PRN_STS_SELECTED 0x10
- #define USB_PRN_STS_NOT_ERROR 0x08
- #define USB_PRN_MAX_DEVICE_ID_LEN 256
- /* typedefs */
- /* USB_PRINTER_CAPABILITIES
- *
- * NOTE: The USB_PRINTER_CAPABILITIES structure matches that of the IEEE-1284
- * "device ID" string.
- */
- typedef struct usb_printer_capabilities
- {
- UINT16 length; /* length of string, big-endian */
- UINT8 caps [1]; /* variable length string */
- } USB_PRINTER_CAPABILITIES, *pUSB_PRINTER_CAPABILITIES;
- /* USB_PRINTER_PORT_STATUS */
- typedef struct usb_printer_port_status
- {
- UINT8 status;
- } USB_PRINTER_PORT_STATUS, *pUSB_PRINTER_PORT_STATUS;
- #ifdef __cplusplus
- }
- #endif
- #endif /* __INCusbPrinterh */
- /* End of file. */