Function flash_read

pub unsafe extern "C" fn flash_read(
    dev: *const device,
    offset: i32,
    data: *mut c_void,
    len: usize,
) -> i32

@brief Read data from flash

All flash drivers support reads without alignment restrictions on the read offset, the read size, or the destination address.

@param dev : flash dev @param offset : Offset (byte aligned) to read @param data : Buffer to store read data @param len : Number of bytes to read.

@return 0 on success, negative errno code on fail.