host->ocr_avail);/*Order's important: probe SDIO, then SD, then MMC*/if(!(host->caps2 &MMC_CAP2_NO_SDIO))if(!mmc_attach_sdio(host))return0;if(!(host->caps2 &MMC_CAP2_NO_SD))if(!mmc_attach_sd(host))return0;if(!(host->caps2 &MMC_CAP2_NO_MMC))if(...
2.主要数据结构和API 2.1 struct mmc_host Elemete Namestruct mmc_host Pathinclude/linux/mmc/host.h Responsiblities mmc core使用struct mmc_host来抽象mmc host controller Attributions parent : struct device *类型,指向该mmc host的父设备,一般为注册此mmc_host的platform device class_dev:一个struct device...
意思是本机有一个移动SD卡。和一个内置SD卡。系统默认存储为内置的SD卡 意思就是这个。还满意的话给个好评哦
1.mmc host结构体定义 static struct class mmc_host_class = { .name = "mmc_host", .dev_release = mmc_host_classdev_release, .shutdown_pre = mmc_host_classdev_shutdown, .pm = MMC_HOST_CLASS_DEV_PM_OPS, }; 1. 2. 3. 4. 5. 6. 2.mmc host操作接口定义 static struct mmc_host_op...
裸机中没有驱动的概念,因为没有操作系统。 裸机程序是直接操控硬件的,而操作系统中则是通过驱动来操控硬件。两者的本质区别是分层。 2、uboot的虚拟地址对硬件操作的影响 (1)操作系统下,MMU是开启的,即linux驱动使用的都是虚拟地址。纯裸机程序不会开启MMU,全部使用物... ...
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2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 三、数据结构 1、struct sdhci_msm_host sdhci-msm host driver根据自身资源定制的host结构体。
2.probe()函数 staticintdw_mci_rockchip_probe(structplatform_device *pdev){conststructdw_mci_drv_data*drv_data;conststructof_device_id*match;intret;if(!pdev->dev.of_node)return-ENODEV; match = of_match_node(dw_mci_rockchip_match, pdev->dev.of_node); ...
7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License as published by 10 * the Free Software Foundation; either version 2 of the License, or (at 11 * your option) any later version. 12 */ 13#ifndef...
理光公司多媒体存储卡（MMC卡）主控制器驱动程序装的驱动可能有问题..