block_dev_desc_t* usb_stor_get_dev(int dev);
block_dev_desc_t* mmc_get_dev(int dev);
block_dev_desc_t* systemace_get_dev(int dev);
block_dev_desc_t* usb_stor_get_dev(int dev);
block_dev_desc_t* mmc_get_dev(int dev);
block_dev_desc_t* systemace_get_dev(int dev);