Hello QNX Expert,

I am very new to the QNX and NXP S32G board.
I am trying to access eMMC Card through C Code on NXP S32G board. Earlier, we managed to access eMMC Card on Linux using
 the following sample code. But in QNX, it faced an issue using ioctl() calls.

Do you have any information and/or documents discussing accessing eMMC in QNX through programming?

I want to know how to read (ex. a device's physical sector size), write, and erase (number of blocks) in eMMC.
This API's like open() close(), lssek(), write() works.

Sample code for Linux
	int fd = open("/dev/mmcblk0", O_RDWR);

	struct stat sb;
	fstat(fd, &sb)

	int secsize = 0;
	ret = ioctl(fd, BLKSSZGET, &secsize); //a device's physical sector size
	if (ret < 0) 
	{
		// set the erase block size
		uint64_t range[2];
		range[0] = offset; // input address
		range[1] = len;    // input block size
		if (ioctl(fd, BLKDISCARD, &range)
		{

		}
	}

	close(fd)
	

Best Regards,
Manoj