• Call TMIO_init() once after irqInit() (libnds).
• Call SDMMC_init(const u8 devNum).

If SDMMC_init() succeeded you can use all other SDMMC_...() functions. SDMMC_init() can be called again at any time to reinitialize the SD card/eMMC provided you call SDMMC_deinit() first.

DMA is supported for SDMMC_readSectors() and SDMMC_writeSectors() by passing a NULL pointer for buf and setting up a NDMA channel prior to calling these functions. Note that the TMIO driver does not support unaligned access for DMA and buffers not a multiple of 4 bytes (for CPU and DMA transfers). It's recommended to add a bounce buffer or cache to make sure buffers are 4 bytes aligned.

This software is licensed under the MIT license. See LICENSE.txt for details.

Exemptions:

• The BlocksDS project and its members are exempt from MIT licensing. They are permitted to relicense the source code of this repository, at their discretion, to the zlib license. In doing so they may alter, supplement or entirely remove the copyright notice for each file they choose to relicense.
• The dsi-modchip project and its members are exempt from MIT licensing. They are permitted to relicense the source code of this repository, at their discretion, to the LGPL license version 3 or later. In doing so they may alter, supplement or entirely remove the copyright notice for each file they choose to relicense.