On Thu, Aug 26, 2021 at 11:43:01AM -0700, Joe Perches wrote: > A few sysfs output uses of hex arrays are uppercase and are nominally ABI. > > Add a mechanism to the existing vsprintf %*ph hex output extension to > support upper case hex output. ... > + The preferred output is lowercase > %*ph 00 01 02 ... 3f > %*phC 00:01:02: ... :3f > %*phD 00-01-02- ... -3f > %*phN 000102 ... 3f > + Formats with X are uppercase, used for backwards compatibility > + %*phX 00 01 02 ... 3F > + %*phCX 00:01:02: ... :3F > + %*phDX 00-01-02- ... -3F > + %*phNX 000102 ... 3F Why not using %*pH...? ... > + char locase = 0x20; /* ASCII OR'd for lower case see: number() */ If you use h vs H, you may derive this from (fmt[...] & SMALL). -- With Best Regards, Andy Shevchenko
