#include #include #include #include #include "rnd.h" #include "die.h" #include "ioexact.h" #include "ioops.h" static int fdw = -1; static void randombytes_weak(unsigned char *x, size_t xlen) { int ret; if (fdw == -1) { for (;;) { fdw = open(LOW_ENTROPY_SOURCE, O_RDONLY); if (fdw != -1) break; sleep(1); } } while (xlen > 0) { if (xlen < 1048576) ret = xlen; else ret = 1048576; ret = read(fdw, x, ret); if (ret < 1) { sleep(1); continue; } x += ret; xlen -= ret; } } static void randombytes_strong(unsigned char *x, size_t xlen) { int fds, ret; fds = open_or_die(HIG_ENTROPY_SOURCE, O_RDONLY); ret = read_exact(fds, x, xlen, 0); if (ret != (int) xlen) panic("Error reading from entropy source!\n"); close(fds); } int secrand(void) { int ret; randombytes_weak((void *) &ret, sizeof(ret)); return ret; } void gen_key_bytes(unsigned char *area, size_t len) { randombytes_strong(area, len); } t();'> net-next plumbingsTobias Klauser

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author	James Ban <James.Ban.opensource@diasemi.com>	2016-06-29 16:49:32 +0900
committer	Mark Brown <broonie@kernel.org>	2016-06-29 17:24:55 +0100
commit	7524c1cebc0a4e2ab186fcb5f87116f3d9018ee4 (patch)
tree	0072b2c269ed404b8371d8b99a090a10a067f627
parent	1a695a905c18548062509178b98bc91e67510864 (diff)

regulator: da9211: add descriptions for da9212/da9214

This is a patch for adding description for da9212/da9214. Signed-off-by: James Ban <James.Ban.opensource@diasemi.com> Signed-off-by: Mark Brown <broonie@kernel.org>