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(parent: ebf9ec7) | patch
tty: ldisc: document that ldops are optional
authorJiri Slaby (SUSE) <jirislaby@kernel.org>
Thu, 10 Aug 2023 09:14:36 +0000 (11:14 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 11 Aug 2023 19:12:44 +0000 (21:12 +0200)
commitabb05ac9f78b3760d118d17e69e27367a5f0a9d7
treec4b05f19859ed4807884b5b818a3bba3b6691178tree | snapshot
parentebf9ec7a4554632d9e621a4c00618c7c10a3e0facommit | diff
tty: ldisc: document that ldops are optional

There is no need to provide any hook in struct tty_ldisc_ops. Document
that and write down that read/write return EIO in that case. The rest is
simply ignored.

Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20230810091510.13006-3-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
include/linux/tty_ldisc.h diff | blob | history
Domain: System / Kernel;