From: Daniel Starke <daniel.starke@xxxxxxxxxxx> More than 1/3 of the n_gsm code has been contributed by us in the last 1.5 years, completing conformance with the standard and stabilizing the driver: - added UI (unnumbered information) frame support - added PN (parameter negotiation) message handling and function support - added optional keep-alive control link supervision via test messages - added TIOCM_OUT1 and TIOCM_OUT2 to allow responder to operate as modem - added TIOCMIWAIT support on virtual ttys - added additional ioctls and parameters to configure the new functions - added overall locking mechanism to avoid data race conditions - added outgoing data flow to decouple physical from virtual tty handling for better performance and to avoid dead-locks - fixed advanced option mode implementation - fixed convergence layer type 2 implementation - fixed handling of CLD (multiplexer close down) messages - fixed broken muxer close down procedure - and many more bug fixes With this most of our initial RFC has been implemented. It gives the driver a quality boost unseen in the decade before. Add a partial copyright notice to the n_gsm files to highlight this contribution. Link: https://lore.kernel.org/all/20220225080758.2869-1-daniel.starke@xxxxxxxxxxx/ Signed-off-by: Daniel Starke <daniel.starke@xxxxxxxxxxx> --- drivers/tty/n_gsm.c | 1 + include/uapi/linux/gsmmux.h | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 0ee7531c9201..fa882c7f4770 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -2,6 +2,7 @@ /* * n_gsm.c GSM 0710 tty multiplexor * Copyright (c) 2009/10 Intel Corporation + * Portions Copyright (c) 2022/23 Siemens Mobility GmbH * * * THIS IS A DEVELOPMENT SNAPSHOT IT IS NOT A FINAL RELEASE * * diff --git a/include/uapi/linux/gsmmux.h b/include/uapi/linux/gsmmux.h index 4c878d84dbda..101ebd15954e 100644 --- a/include/uapi/linux/gsmmux.h +++ b/include/uapi/linux/gsmmux.h @@ -1,4 +1,5 @@ /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ +/* Portions Copyright (c) 2022/23 Siemens Mobility GmbH */ #ifndef _LINUX_GSMMUX_H #define _LINUX_GSMMUX_H -- 2.34.1
