void ctl_gfx_write_8b_commands(const unsigned char *seq,
                               size_t n,
                               unsigned delay,
                               void (*write)(unsigned));

ctl_gfx_write_8b_commands sends 8-bit commands pointed to by seq using the write function. The size of the sequence is n bytes. The parameter delay indicates the distinguished value that, if found in the command sequence, indicates a delay, in milliseconds, taken from the following byte.