@evanh I'm sorry, I was mistaken about ioctl, it isn't hooked all the way up -- that is, an ioctl() on a file doesn't get passed through to the disk
However, you can do something like the following:
#include <stdio.h>
#include <unistd.h>
#include <stdint.h>
#include <sys/vfs.h>
#include <fcntl.h>
int main() {
int r;
FILE *raw_device = _sdmm_open(61, 60, 59, 58);
if (!raw_device) {
printf("Unable to open SD card\n");
return 1;
}
/* strictly speaking we don't need to mount to access the device layer,
but we probably will want to eventually */
mount("/sd", _vfs_open_fat_handle(raw_device));
uint8_t *buff = __builtin_alloca(20); // auto-frees upon return
errno = 0;
r = raw_device->ioctl(raw_device, 0, buff); // Attempting to trigger a CTRL_SYNC in the SD device driver
printf(" ioctl %d (%d): %s\n", r, errno, strerror(errno));
return 0;
}
There was a typo in the declaration of _vfs_open_fat_handle in include/sys/vfs.h (it was looking in the 9p file system instead of fatfs). That's fixed in the current github, or you can change it yourself in your local copy.
Comments
@evanh I'm sorry, I was mistaken about ioctl, it isn't hooked all the way up -- that is, an ioctl() on a file doesn't get passed through to the disk
However, you can do something like the following:
#include <stdio.h> #include <unistd.h> #include <stdint.h> #include <sys/vfs.h> #include <fcntl.h> int main() { int r; FILE *raw_device = _sdmm_open(61, 60, 59, 58); if (!raw_device) { printf("Unable to open SD card\n"); return 1; } /* strictly speaking we don't need to mount to access the device layer, but we probably will want to eventually */ mount("/sd", _vfs_open_fat_handle(raw_device)); uint8_t *buff = __builtin_alloca(20); // auto-frees upon return errno = 0; r = raw_device->ioctl(raw_device, 0, buff); // Attempting to trigger a CTRL_SYNC in the SD device driver printf(" ioctl %d (%d): %s\n", r, errno, strerror(errno)); return 0; }There was a typo in the declaration of
_vfs_open_fat_handlein include/sys/vfs.h (it was looking in the 9p file system instead of fatfs). That's fixed in the current github, or you can change it yourself in your local copy.Yes! I have the "SYNC" printing. Thank you.
Ah, I see device init is called even before mounting now.
I'm way past bedtime. Zzzz
@ersmith Do you have an opinion on the best name for a file to hold pin and clock settings and such in?
I've been using Platform.h (copied from Arduino). I see @Wuerfel_21 uses config.spin2 a lot (exclusively?).
Maybe you have a different/better option/opinion?