Function usbWriteCallback

src/massStorage.cpp:302–313

}

int32_t usbWriteCallback(uint32_t lba, uint32_t offset, uint8_t *buffer, uint32_t bufsize) {
    const uint32_t secSize = SDM.sectorSize();
    if (secSize == 0 || offset != 0 || (bufsize % secSize) != 0) return -1;

    const uint32_t blocks = bufsize / secSize;
    for (uint32_t x = 0; x < blocks; ++x) {
        if (!SDM.writeRAW(buffer + (secSize * x), lba + x)) {
            return -1; // write error
        }
    }
    return bufsize;
}

int32_t usbReadCallback(uint32_t lba, uint32_t offset, void *buffer, uint32_t bufsize) {
    const uint32_t secSize = SDM.sectorSize();