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Improve O_SYNC logic

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This commit is contained in:
Moritz 'Morty' Strübe
2015-05-08 09:14:40 +02:00
parent 425c58e79d
commit 1e359d2324
1 changed files with 4 additions and 1 deletions
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5
tools/sky/serialdump.c
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@@ -164,8 +164,11 @@ main(int argc, char **argv)
}
fprintf(stderr, "connecting to %s (%s)", device, speedname);
#ifndef __APPLE__
#ifdef O_SYNC
fd = open(device, O_RDWR | O_NOCTTY | O_NDELAY | O_DIRECT | O_SYNC);
if(fd < 0 && errno == EINVAL){ // O_SYNC not supported (e.g. raspberian)
fd = open(device, O_RDWR | O_NOCTTY | O_NDELAY | O_DIRECT);
}
#else
fd = open(device, O_RDWR | O_NOCTTY | O_NDELAY | O_SYNC );
#endif