On Sun, 23 Aug 2015 10:14:20 +0300, Ruth Glushkin said: > On Thu, 22 Aug 2015 00:21:00 -0000, Valdis Kletnieks said: > > > Sounds like a reference counting problem. > > As far as I know, reference counter for line discipline sets to 0 in > tty_register_ldisc(), Not for the discipline, for the *MODULE*. > And please advice how could I transfer data between kernel and user > space not using filp_open() and filp_close(). Depends on the data. sysfs, netlink, debugfs, or having userspace open the file and using that, or any number of other ways to do it.
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