davids5 commented on pull request #3958: URL: https://github.com/apache/incubator-nuttx/pull/3958#issuecomment-874853556
@a-lunev I am looking into this on HW that supports SDMMC1. The code path where mmcsd_read_csd is for CONFIG_MMCSD_MMCSUPPORT. I have CONFIG_MMCSD_MMCSUPPORT disabled since there was a commit that broke the detection (while still in bitbucket). Have you a config you can test this code path? As I see it way to solve this are to a) use CONFIG_GRAN or b) statically define the buffer using locate_data. The latter is more wasteful. My suggestion is to add CONFIG_GRAN and a dma allocattor. (see https://github.com/PX4/PX4-Autopilot/blob/master/platforms/nuttx/src/px4/common/board_dma_alloc.c) Then in mmcsd_read_csd add compile time code to call `board_dma_alloc` to alocate the buffer, then free it after use with board_dma_free. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@nuttx.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
