diff options
| author | Keith Packard <keithp@keithp.com> | 2013-04-11 22:16:03 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2013-04-12 16:37:49 -0700 |
| commit | 25c01719f17be8da73a859867c14df0fc29b5441 (patch) | |
| tree | 11c64017b963768dcc281c239f691b79d2fd5d9d /libaltos/libaltos.c | |
| parent | 679401fff981b675dd5a188c64e8940254588800 (diff) | |
libaltos: Retry Windows serial port open five times
Maybe this helps?
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'libaltos/libaltos.c')
| -rw-r--r-- | libaltos/libaltos.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/libaltos/libaltos.c b/libaltos/libaltos.c index 2a41ef80..ad03e638 100644 --- a/libaltos/libaltos.c +++ b/libaltos/libaltos.c @@ -1319,6 +1319,7 @@ altos_open(struct altos_device *device) struct altos_file *file = calloc (1, sizeof (struct altos_file)); char full_name[64]; COMMTIMEOUTS timeouts; + int i; if (!file) return NULL; @@ -1326,7 +1327,15 @@ altos_open(struct altos_device *device) strcpy(full_name, "\\\\.\\"); strcat(full_name, device->path); - file->handle = open_serial(full_name); + file->handle = INVALID_HANDLE_VALUE; + + for (i = 0; i < 5; i++) { + file->handle = open_serial(full_name); + if (file->handle != INVALID_HANDLE_VALUE) + break; + Sleep(100); + } + if (file->handle == INVALID_HANDLE_VALUE) { free(file); return NULL; |