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r: 87462
b: refs/heads/master
c: 74fe030
h: refs/heads/master
v: v3
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Linus Torvalds committed Mar 18, 2008
1 parent 183099d commit 1519979
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2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: 13d93924f13e1989cf27375cd46451475bc70d1d
refs/heads/master: 74fe030532d779a3774fcc9e1ddce65f3773e156
52 changes: 52 additions & 0 deletions trunk/Documentation/input/notifier.txt
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Keyboard notifier

One can use register_keyboard_notifier to get called back on keyboard
events (see kbd_keycode() function for details). The passed structure is
keyboard_notifier_param:

- 'vc' always provide the VC for which the keyboard event applies;
- 'down' is 1 for a key press event, 0 for a key release;
- 'shift' is the current modifier state, mask bit indexes are KG_*;
- 'value' depends on the type of event.

- KBD_KEYCODE events are always sent before other events, value is the keycode.
- KBD_UNBOUND_KEYCODE events are sent if the keycode is not bound to a keysym.
value is the keycode.
- KBD_UNICODE events are sent if the keycode -> keysym translation produced a
unicode character. value is the unicode value.
- KBD_KEYSYM events are sent if the keycode -> keysym translation produced a
non-unicode character. value is the keysym.
- KBD_POST_KEYSYM events are sent after the treatment of non-unicode keysyms.
That permits one to inspect the resulting LEDs for instance.

For each kind of event but the last, the callback may return NOTIFY_STOP in
order to "eat" the event: the notify loop is stopped and the keyboard event is
dropped.

In a rough C snippet, we have:

kbd_keycode(keycode) {
...
params.value = keycode;
if (notifier_call_chain(KBD_KEYCODE,&params) == NOTIFY_STOP)
|| !bound) {
notifier_call_chain(KBD_UNBOUND_KEYCODE,&params);
return;
}

if (unicode) {
param.value = unicode;
if (notifier_call_chain(KBD_UNICODE,&params) == NOTIFY_STOP)
return;
emit unicode;
return;
}

params.value = keysym;
if (notifier_call_chain(KBD_KEYSYM,&params) == NOTIFY_STOP)
return;
apply keysym;
notifier_call_chain(KBD_POST_KEYSYM,&params);
}

NOTE: This notifier is usually called from interrupt context.
2 changes: 2 additions & 0 deletions trunk/Documentation/kernel-parameters.txt
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Expand Up @@ -732,6 +732,8 @@ and is between 256 and 4096 characters. It is defined in the file
(Don't attempt to blink the leds)
i8042.noaux [HW] Don't check for auxiliary (== mouse) port
i8042.nokbd [HW] Don't check/create keyboard port
i8042.noloop [HW] Disable the AUX Loopback command while probing
for the AUX port
i8042.nomux [HW] Don't check presence of an active multiplexing
controller
i8042.nopnp [HW] Don't use ACPIPnP / PnPBIOS to discover KBD/AUX
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17 changes: 5 additions & 12 deletions trunk/Documentation/mca.txt
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Expand Up @@ -143,14 +143,7 @@ MCA Device Drivers

Currently, there are a number of MCA-specific device drivers.

1) PS/2 ESDI
drivers/block/ps2esdi.c
include/linux/ps2esdi.h
Uses major number 36, and should use /dev files /dev/eda, /dev/edb.
Supports two drives, but only one controller. May use the
command-line args "ed=cyl,head,sec" and "tp720".

2) PS/2 SCSI
1) PS/2 SCSI
drivers/scsi/ibmmca.c
drivers/scsi/ibmmca.h
The driver for the IBM SCSI subsystem. Includes both integrated
Expand All @@ -159,25 +152,25 @@ Currently, there are a number of MCA-specific device drivers.
machine with a front-panel display (i.e. model 95), you can use
"ibmmcascsi=display" to enable a drive activity indicator.

3) 3c523
2) 3c523
drivers/net/3c523.c
drivers/net/3c523.h
3Com 3c523 Etherlink/MC ethernet driver.

4) SMC Ultra/MCA and IBM Adapter/A
3) SMC Ultra/MCA and IBM Adapter/A
drivers/net/smc-mca.c
drivers/net/smc-mca.h
Driver for the MCA version of the SMC Ultra and various other
OEM'ed and work-alike cards (Elite, Adapter/A, etc).

5) NE/2
4) NE/2
driver/net/ne2.c
driver/net/ne2.h
The NE/2 is the MCA version of the NE2000. This may not work
with clones that have a different adapter id than the original
NE/2.

6) Future Domain MCS-600/700, OEM'd IBM Fast SCSI Adapter/A and
5) Future Domain MCS-600/700, OEM'd IBM Fast SCSI Adapter/A and
Reply Sound Blaster/SCSI (SCSI part)
Better support for these cards than the driver for ISA.
Supports multiple cards with IRQ sharing.
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10 changes: 0 additions & 10 deletions trunk/drivers/block/Kconfig
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Expand Up @@ -44,16 +44,6 @@ config MAC_FLOPPY
If you have a SWIM-3 (Super Woz Integrated Machine 3; from Apple)
floppy controller, say Y here. Most commonly found in PowerMacs.

config BLK_DEV_PS2
tristate "PS/2 ESDI hard disk support"
depends on MCA && MCA_LEGACY && BROKEN
help
Say Y here if you have a PS/2 machine with a MCA bus and an ESDI
hard disk.

To compile this driver as a module, choose M here: the
module will be called ps2esdi.

config AMIGA_Z2RAM
tristate "Amiga Zorro II ramdisk support"
depends on ZORRO
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1 change: 0 additions & 1 deletion trunk/drivers/block/Makefile
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Expand Up @@ -13,7 +13,6 @@ obj-$(CONFIG_ATARI_FLOPPY) += ataflop.o
obj-$(CONFIG_AMIGA_Z2RAM) += z2ram.o
obj-$(CONFIG_BLK_DEV_RAM) += brd.o
obj-$(CONFIG_BLK_DEV_LOOP) += loop.o
obj-$(CONFIG_BLK_DEV_PS2) += ps2esdi.o
obj-$(CONFIG_BLK_DEV_XD) += xd.o
obj-$(CONFIG_BLK_CPQ_DA) += cpqarray.o
obj-$(CONFIG_BLK_CPQ_CISS_DA) += cciss.o
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