Checking is serial device already opened before call `%sys-open`

Author Nikolay V. Razbegaev <marsijanin@gmail.com>
Author date 2010-02-13 10:05:01
Author local date 2010-02-13 13:05:01 +0300
Committer Nikolay V. Razbegaev <marsijanin@gmail.com>
Committer date 2010-02-13 10:05:28
Committer local date 2010-02-13 13:05:28 +0300
Commit f526db5fabfc414b2d8d7eebb3c4405f19b76f5d
Tree 07c7e7dd162e3b39487c48eec8319714df9962ed
Parent 5c40e52a73bb5040ca77aa1a40204e2d805776be
Checking is serial device already opened before call `%sys-open`
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