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libbb/libbbd.c (main): open /dev/mem with O_SYNC to disable caching

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This commit is contained in:
Werner Almesberger 2011-01-03 18:52:49 -03:00
parent 3427d691e3
commit 4a04cdc51e
1 changed files with 3 additions and 3 deletions
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6
libbb/libbbd.c
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@ -1,8 +1,8 @@
/*
* libbb/libbbd.c - Bitbang library daemon
*
* Written 2010 by Werner Almesberger
* Copyright 2010 Werner Almesberger
* Written 2010-2011 by Werner Almesberger
* Copyright 2010-2011 Werner Almesberger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -156,7 +156,7 @@ fprintf(stderr, "closefds\n");
closefds();
fprintf(stderr, "open devmem\n");
fd = open("/dev/mem", O_RDWR);
fd = open("/dev/mem", O_RDWR | O_SYNC);
if (fd < 0) {
perror("/dev/mem");
exit(1);