void send_hid()

in uf2tool/tool.c [95:117]

• 22 lines of code
• 5 McCabe index (conditional complexity)

void send_hid(hid_device *dev, const void *data, int size) {
    uint8_t buf[EP_SIZE + 1] = {0};
    const uint8_t *ptr = data;

    for (;;) {
        int s;
        if (size <= EP_SIZE - 1) {
            s = size;
            buf[1] = HF2_FLAG_CMDPKT_LAST | size;
        } else {
            s = EP_SIZE - 1;
            buf[1] = HF2_FLAG_CMDPKT_BODY | (EP_SIZE - 1);
        }
        memcpy(buf + 2, ptr, s);
        int sz = hid_write(dev, buf, EP_SIZE + 1);
        if (sz != EP_SIZE + 1)
            fatal("write error");
        ptr += s;
        size -= s;
        if (!size)
            break;
    }
}