光栅数据 meaning in English

raster data

Chapter two focuses on the embedded linux , going deep into it ’ s structure and analyzing the real - time problem in constructing such a system . usb is discussed in chapter three , where the implementation of usb protocol and development of the printer class usb driver in linux o / s are described . in chapter four , cups ( common unix printing system ) is introduced and how to construct printing system is analyzed . the kernel of the printer driver under embedded linux is implemented with the aid of apdk from hp
第三章讲述usb在linux下的实现问题和usb中打印机设备类驱动程序的开发;第四章首先介绍通用unix打印系统( commonunixprintingsystem ) ,分析在linux平台下如何建立打印系统;再对惠普apdk嵌入式打印机驱动程序开发包进行分析,实现嵌入式linux下打印机核心驱动程序;最后介绍jpeg图象格式到光栅数据格式转换的过滤器的设计。