-/* some reluctance to put this into a new limits.h, so it is here */
-#define INT_MAX ((int)(~0U>>1))
-
-static const char hex_asc[] = "0123456789abcdef";
-#define hex_asc_lo(x) hex_asc[((x) & 0x0f)]
-#define hex_asc_hi(x) hex_asc[((x) & 0xf0) >> 4]
-
-static inline char *pack_hex_byte(char *buf, u8 byte)
-{
- *buf++ = hex_asc_hi(byte);
- *buf++ = hex_asc_lo(byte);
- return buf;
-}
-