Lines Matching refs:csum
633 unsigned char csum = 0; local
652 csum += buf[i];
656 *p++ = tohex ((csum >> 4) & 0xf);
657 *p++ = tohex (csum & 0xf);
751 unsigned char csum; in read_frame() local
755 csum = 0; in read_frame()
782 if (csum == pktcsum) in read_frame()
791 pktcsum, csum); in read_frame()
798 csum += c; in read_frame()
800 csum += c; in read_frame()
819 csum += c; in read_frame()