WSL2-Linux-Kernel/drivers/char
Hendrik Brueckner 368c1e3249 hvc_console: Escape magic sysrq key
The ctrl-o (^O) is a common control key used by several applications,
such as vim, but hvc_console uses ^O as the magic-sysrq key.  This
commit allows users to send ^O to applications by pressing ^O twice
in succession.

To implement this, this commit introduces a check if ^O is pressed
again if the sysrq_pressed variable is already set.  In this case,
clear sysrq_pressed state and flip the ^O character to the tty.  (The
old behavior has always set "sysrq_pressed" if ^O has been entered,
and it has not flipped the ^O character to the tty.)

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-12-21 14:21:15 +11:00
..
agp uninorth-agp section mess 2008-11-30 10:03:37 -08:00
hw_random Tidy up addresses in random drivers 2008-10-27 08:39:52 -07:00
ip2 device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
ipmi Fix platform drivers that crash on suspend/resume 2008-11-12 17:17:16 -08:00
mwave mwave: ioctl BKL pushdown 2008-07-25 10:53:43 -07:00
pcmcia pcmcia: IRQ_TYPE_EXCLUSIVE is long obsoleted 2008-10-17 23:07:10 +02:00
rio rio: push down the BKL into the firmware ioctl handler 2008-07-25 10:53:43 -07:00
tpm tpm: don't export static functions 2008-10-20 08:50:24 -07:00
xilinx_hwicap xilinx_hwicap: remove improper wording in license statement 2008-12-17 11:23:07 -08:00
.gitignore [MIPS] Remove IT8172-based platforms, ITE 8172G and Globespan IVR support. 2006-10-03 17:59:17 +01:00
ChangeLog
Kconfig Merge branch 'linux-2.6' into next 2008-11-19 16:10:32 +11:00
Makefile powerpc: udbg-based backend for hvc_console 2008-11-19 16:04:25 +11:00
amiserial.c m68k: Disable Amiga serial console support if modular 2008-10-26 12:11:21 -07:00
apm-emulation.c APM emulation: Notify about all suspend events, not just APM invoked ones (v2) 2008-07-16 23:27:02 +02:00
applicom.c applicom.c: fix apparently-broken code in do_ac_read() 2008-10-16 11:21:47 -07:00
applicom.h
bfin-otp.c Blackfin char driver for Blackfin on-chip OTP memory (v3) 2008-04-25 08:04:56 +08:00
briq_panel.c briq_panel: BKL pushdown 2008-06-20 14:05:55 -06:00
bsr.c powerpc/BSR: Support multiple OF-node description of BSR 2008-12-03 21:03:27 +11:00
cd1865.h
consolemap.c Basic braille screen reader support 2008-04-30 08:29:52 -07:00
cp437.uni unicode table for cp437 2008-12-13 11:25:49 -08:00
cs5535_gpio.c Add a bunch of cycle_kernel_lock() calls 2008-06-20 14:05:53 -06:00
cyclades.c Char: cyclades. remove bogus iomap 2008-10-13 09:51:38 -07:00
defkeymap.c_shipped Fix default compose table initialization 2008-03-03 14:53:16 -08:00
defkeymap.map
digi1.h
digiFep1.h
digiPCI.h
ds1302.c rtc: use bcd2bin/bin2bcd 2008-10-20 08:52:41 -07:00
ds1620.c [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach 2008-08-07 09:55:48 +01:00
dsp56k.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
dtlk.c Add a bunch of cycle_kernel_lock() calls 2008-06-20 14:05:53 -06:00
efirtc.c drivers/char/efirtc.c: removed duplicated #include 2008-08-04 16:59:56 -07:00
epca.c epca: Add infinite break support 2008-10-20 09:41:06 -07:00
epca.h epca: use tty_port 2008-07-20 17:12:36 -07:00
epcaconfig.h
esp.c tty: rework break handling 2008-07-22 13:03:28 -07:00
generic_nvram.c driver/char/generic_nvram: fix banner 2008-06-12 18:05:41 -07:00
generic_serial.c tty: Remove lots of NULL checks 2008-10-13 09:51:44 -07:00
genrtc.c genrtc: BKL pushdown 2008-06-20 14:05:57 -06:00
hangcheck-timer.c drivers/char/: Spelling fixes 2008-02-03 17:11:42 +02:00
hpet.c saner FASYNC handling on file close 2008-11-01 09:49:46 -07:00
hvc_beat.c [POWERPC] hvcbeat: Fix buffer manipulation 2008-04-17 07:46:10 +10:00
hvc_console.c hvc_console: Escape magic sysrq key 2008-12-21 14:21:15 +11:00
hvc_console.h powerpc: Make open count variables signed in hvcs/hvsi/hvc_console 2008-12-03 21:04:13 +11:00
hvc_irq.c hvc_console: Add a hangup notifier for backends 2008-10-22 10:59:54 +11:00
hvc_iseries.c drivers/hvc: Add missing of_node_put 2008-12-03 21:04:09 +11:00
hvc_rtas.c [POWERPC] hvc_rtas_init() must be __init 2008-02-14 22:11:02 +11:00
hvc_udbg.c powerpc: udbg-based backend for hvc_console 2008-11-19 16:04:25 +11:00
hvc_vio.c drivers/hvc: Add missing of_node_put 2008-12-03 21:04:09 +11:00
hvc_xen.c hvc_console: Add a hangup notifier for backends 2008-10-22 10:59:54 +11:00
hvcs.c powerpc: Make open count variables signed in hvcs/hvsi/hvc_console 2008-12-03 21:04:13 +11:00
hvsi.c powerpc: Make open count variables signed in hvcs/hvsi/hvc_console 2008-12-03 21:04:13 +11:00
i8k.c i8k: make fan multiplier tunable with a module parameter 2008-05-01 08:04:00 -07:00
isicom.c tty: trivial - fix up email addresses in tty related stuff 2008-11-11 09:30:10 -08:00
istallion.c istallion section warnings 2008-11-30 10:03:36 -08:00
keyboard.c Input: keyboard - fix potential out of bound access to key_map 2008-10-08 23:45:36 -04:00
lp.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
mbcs.c mbcs: cdev lock_kernel() pushdown 2008-06-20 14:05:48 -06:00
mbcs.h MBCS: convert dmareadlock to mutex 2008-02-07 08:42:25 -08:00
mem.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
misc.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
mmtimer.c mmtimer: Push BKL down into the ioctl handler 2008-07-17 11:34:49 -07:00
moxa.c char: moxa.c sparse annotation 2008-10-16 11:21:47 -07:00
moxa.h Char: moxa, cleanup rx/tx 2008-04-30 08:29:43 -07:00
mspec.c mspec: convert nopfn to fault 2008-07-24 10:47:14 -07:00
mxser.c tty: trivial - fix up email addresses in tty related stuff 2008-11-11 09:30:10 -08:00
mxser.h mxser: convert large macros to functions 2008-04-30 08:29:49 -07:00
n_hdlc.c tty: some ICANON magic is in the wrong places 2008-10-13 09:51:44 -07:00
n_r3964.c tty: Remove lots of NULL checks 2008-10-13 09:51:44 -07:00
n_tty.c tty: rename the remaining oddly named n_tty functions 2008-10-13 09:51:45 -07:00
nozomi.c nozomi: Fix close on error 2008-10-13 09:51:39 -07:00
nsc_gpio.c [PATCH] struct path: convert char-drivers 2006-12-08 08:28:44 -08:00
nvram.c [PATCH] introduce fmode_t, do annotations 2008-10-21 07:47:06 -04:00
nwbutton.c [PATCH] Char: timers cleanup 2007-02-12 09:48:30 -08:00
nwbutton.h IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
nwflash.c [ARM] fix nwflash.c: 6ee8928d94 2008-07-26 16:29:24 +01:00
pc8736x_gpio.c pc8736x_gpio: add support for PC87365 chips 2008-10-20 08:52:40 -07:00
ppdev.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
ps3flash.c ps3: FLASH ROM Storage Driver 2007-07-21 17:49:16 -07:00
pty.c pty: simplify unix98 allocation 2008-10-13 09:51:44 -07:00
random.c saner FASYNC handling on file close 2008-11-01 09:49:46 -07:00
raw.c [PATCH] kill the rest of struct file propagation in block ioctls 2008-10-21 07:49:14 -04:00
riscom8.c riscom8: Restore driver using new break functionality 2008-07-22 13:03:28 -07:00
riscom8.h tty: add more tty_port fields 2008-07-20 17:12:38 -07:00
riscom8_reg.h
rocket.c tty: rework break handling 2008-07-22 13:03:28 -07:00
rocket.h tty: add more tty_port fields 2008-07-20 17:12:38 -07:00
rocket_int.h tty: add more tty_port fields 2008-07-20 17:12:38 -07:00
rtc.c saner FASYNC handling on file close 2008-11-01 09:49:46 -07:00
scc.h
scx200_gpio.c Add a bunch of cycle_kernel_lock() calls 2008-06-20 14:05:53 -06:00
selection.c tty: Ldisc revamp 2008-07-20 17:12:34 -07:00
ser_a2232.c m68k: gs: use tty_port fixes 2008-07-26 20:29:03 -07:00
ser_a2232.h
ser_a2232fw.ax
ser_a2232fw.h
serial167.c Fix incorrect use of loose in tty/serial drivers 2008-12-05 13:40:52 -08:00
snsc.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
snsc.h Convert asm/semaphore.h users to linux/semaphore.h 2008-04-18 22:22:54 -04:00
snsc_event.c byteorder: don't directly include linux/byteorder/generic.h 2008-05-16 12:01:45 -07:00
sonypi.c Merge branch 'misc' into release 2008-11-11 21:14:11 -05:00
specialix.c Create/use more directory structure in the Documentation/ tree. 2008-11-14 17:28:53 +00:00
specialix_io8.h tty: add more tty_port fields 2008-07-20 17:12:38 -07:00
stallion.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
sx.c Char: sx, remove bogus iomap 2008-10-20 08:52:36 -07:00
sx.h Char: char/serial, remove SERIAL_TYPE_NORMAL redefines 2008-02-07 08:42:33 -08:00
sxboards.h
sxwindow.h
synclink.c Merge branch 'for-jeff' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6 into tmp 2008-08-07 04:05:46 -04:00
synclink_gt.c removed unused #include <version.h> 2008-08-16 17:21:58 -07:00
synclinkmp.c Merge branch 'for-jeff' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6 into tmp 2008-08-07 04:05:46 -04:00
sysrq.c Fix documentation of sysrq-q 2008-10-20 08:52:34 -07:00
tb0219.c Add a bunch of cycle_kernel_lock() calls 2008-06-20 14:05:53 -06:00
tlclk.c tlckl: BKL pushdown 2008-06-20 14:05:51 -06:00
toshiba.c toshiba: use ioremap_cached 2008-04-30 23:15:34 +02:00
tty_audit.c audit: Handle embedded NUL in TTY input auditing 2008-10-13 09:51:39 -07:00
tty_buffer.c tty: split the buffering from tty_io 2008-10-13 09:51:40 -07:00
tty_io.c drivers/char/tty_io.c: Avoid panic when no console is configured. 2008-12-01 08:19:10 -08:00
tty_ioctl.c tty: some ICANON magic is in the wrong places 2008-10-13 09:51:44 -07:00
tty_ldisc.c try harder to load tty ldisc driver 2008-08-01 12:50:15 -07:00
tty_port.c tty: Fix tty_port kref screwup 2008-10-23 09:20:53 -07:00
vc_screen.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
viotape.c device create: char: convert device_create_drvdata to device_create 2008-10-16 09:24:42 -07:00
virtio_console.c hvc_console: Add a hangup notifier for backends 2008-10-22 10:59:54 +11:00
vme_scc.c m68k: gs: use tty_port fixes 2008-07-26 20:29:03 -07:00
vr41xx_giu.c drivers/char: use nr_irqs 2008-10-16 16:52:05 +02:00
vt.c console ASCII glyph 1:1 mapping 2008-12-13 11:25:49 -08:00
vt_ioctl.c tty: move tioclinux from a special case 2008-10-13 09:51:40 -07:00