kernel_samsung_sm7125

jenna

History

Sascha Hauer 71e0779153 tty: n_gsm: do not send/receive in ldisc close path gsm_cleanup_mux() is called in the line discipline close path which is called at tty_release() time. At this stage the tty is no longer operational enough to send any frames. Sending close frames is therefore not possible and waiting for their answers always times out. This patch removes sending close messages and waiting for their answers from the tty_release path. This patch makes explicit what previously implicitly had been the case already: We are not able to tell the modem that we are about to close the multiplexer on our side. This means the modem will stay in multiplexer mode and re-establishing the multiplexer later fails. The only way for userspace to work around this is to manually send a close frame in N_TTY mode after closing the mux. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		8 years ago
..
00-INDEX	…
README.cycladesZ	…
driver	serial: doc: Use port->state instead of info	9 years ago
moxa-smartio	…
n_gsm.txt	tty: n_gsm: do not send/receive in ldisc close path	8 years ago
rocket.txt	…
serial-rs485.txt	Documentation: rs485: Do not define manually the ioctl	9 years ago
tty.txt	Fix OpenSSH pty regression on close	9 years ago

README.cycladesZ


The Cyclades-Z must have firmware loaded onto the card before it will
operate.  This operation should be performed during system startup,

The firmware, loader program and the latest device driver code are
available from Cyclades at
    ftp://ftp.cyclades.com/pub/cyclades/cyclades-z/linux/