【正文】 目錄 1 聲明 你可以自由地隨意修改本文檔的任何文字內(nèi)容及圖表，但是如果你在自己的文檔中以任何形式直接引用了本文檔的任何原有文字或圖表并希望發(fā)布你的文檔，那么你也得保證讓所有得到你的文檔的人同時享有你曾經(jīng)享有過的權(quán)利。 i2c 源代碼情景分析 （ Beta2） 作者在 上的 ID 為 shrek2 歡迎補充，歡迎批評指正！ 第 1 章 i2c 核心數(shù)據(jù)結(jié)構(gòu)之間的關(guān)系 ...................................................................................................... 3 第 2 章 的初始化 ..................................................................................................................... 9 i2c_init 函數(shù) .................................................................................................................................... 9 i2cproc_init 函數(shù) ............................................................................................................................ 10 第 3 章 安裝、卸載 pxa255 的 i2c 適配器驅(qū)動程序 ................................................................................ 12 pxa_i2c 數(shù)據(jù)結(jié)構(gòu) ........................................................................................................................... 12 i2c_adap_pxa_init 函數(shù) ................................................................................................................... 14 i2c_add_adapter函數(shù) ...................................................................................................................... 15 i2c_del_adapter 函數(shù) ....................................................................................................................... 17 i2c_adap_pxa_exit 函數(shù) ................................................................................................................... 19 第 4 章 安裝、卸載 ltc3445驅(qū)動程序 .................................................................................................... 20 ltc3445_init 函數(shù) ............................................................................................................................ 20 i2c_add_driver 函數(shù) ........................................................................................................................ 21 i2c_probe 函數(shù) ............................................................................................................................... 22 i2c_check_functionality 函數(shù) ........................................................................................................... 25 i2c_smbus_xfer 函數(shù) ....................................................................................................................... 26 i2c_transfer函數(shù) ............................................................................................................................ 28 ltc3445_detect_client 函數(shù) ............................................................................................................... 29 i2c_attach_client 函數(shù) ..................................................................................................................... 30 ltc3445_cleanup函數(shù) ...................................................................................................................... 31 i2c_del_driver 函數(shù) ......................................................................................................................... 32 ltc3445_detach_client 函數(shù) .............................................................................................................. 34 i2c_detach_client 函數(shù) .................................................................................................................... 34 第 5 章 與 pxa255 的 i2c 適配器相關(guān)的代碼 .......................................................................................... 36 i2c_pxa_reset 函數(shù) ......................................................................................................................... 36 i2c_pxa_abort 函數(shù) ......................................................................................................................... 37 目錄 2 i2c_pxa_xfer 函數(shù) .......................................................................................................................... 37 i2c_pxa_do_xfer 函數(shù) ..................................................................................................................... 38 i2c_pxa_start_message 函數(shù) ............................................................................................................ 40 i2c_pxa_handler 函數(shù) ...................................................................................................................... 41 i2c_pxa_irq_txempty 函數(shù) ............................................................................................................... 41 i2c_pxa_irq_rxfull函數(shù) ................................................................................................................... 46 第 6 章 i2cdev 的初始化 ...................................................................................................................... 48 i2c_dev_init 函數(shù) ........................................................................................................................... 48 i2cdev_attach_adapter 函數(shù) ............................................................................................................. 49 第 7 章 i2c 框架提供的設(shè)備訪問方法 .................................................................................................... 51 i2cdev_open函數(shù) ........................................................................................................................... 51 i2cdev_ioctl函數(shù) ............................................................................................................................ 52 i2cdev_read函數(shù) ............................................................................................................................ 53 i2c_master_recv函數(shù) ...................................................................................................................... 54 對 i2cdev_read 和 i2c_master_recv 的修改 ............................................................