Commit Graph

13 Commits

Author SHA1 Message Date
Mike Frysinger 0741241c6b connector: make callback argument type explicit
The connector documentation states that the argument to the callback
function is always a pointer to a struct cn_msg, but rather than encode it
in the API itself, it uses a void pointer everywhere.  This doesn't make
much sense to encode the pointer in documentation as it prevents proper C
type checking from occurring and can easily allow people to use the wrong
pointer type.  So convert the argument type to an explicit struct cn_msg
pointer.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-07-17 10:13:21 -07:00
Evgeniy Polyakov 4037014e3f w1: send status messages after command processing
Send completion status of the commands to the userspace.  Message and
protocol are described in the documentation.

Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Paul Alfille <paul.alfille@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-08 08:31:14 -08:00
Evgeniy Polyakov f89735c4e2 w1: added w1 reset command
Command which allows to reset the bus.

Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Paul Alfille <paul.alfille@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-08 08:31:14 -08:00
Evgeniy Polyakov c7e26631d2 w1: allow master IO commands
This small patchset extendes existing commands with reset, master IO and
status messages.  Reset is used to reset the bus for given master device,
master IO command allows to initiate IO against bus itself not selecting
slave device first, which can be used to probe the device for example.
And status messages carry command completion status back to the userspace
(namely very useful to get -ENODEV from when requested device was not
found).

Great thanks to Paul Alfille of OWFS for testing and commands suggestions.

This patch:

Allow starting of IO not against already found slave devices, but against
the bus itself, which can be used for example to probe devices.

[akpm@linux-foundation.org: reindent switch statements]
Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Paul Alfille <paul.alfille@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-08 08:31:13 -08:00
Evgeniy Polyakov 3b8384070e w1: list slaves commands
Initiates search (or alarm search) and returns all found devices to
userspace.  Found devices are not added into the system (i.e.  they are
not attached to family devices or bus masters), it will be done via (if
was not done yet) usual timed searching.

Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-08 08:31:13 -08:00
Evgeniy Polyakov 9be62e0b2f w1: add touch block command
Writes and returns sampled data back to userspace.

Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-08 08:31:13 -08:00
Evgeniy Polyakov 610705e780 w1: add list masters w1 command
This patch series introduces and extends several userspace commands
used with netlink protocol.

Touch block command allows to write data and return sampled data to
the userspace.

Extended search and alarm seach commands to return list of slave
devices found during given search.

List masters command allows to send all registered master IDs to the
userspace.

Great thanks to Paul Alfille (owfs) who
tested this implementation and wrote w1-to-network daemon
http://sourceforge.net/projects/w1repeater/ and

Frederik Deweerdt and Randy Dunlap for review.

This patch:

Returns list of registered bus master devices.

Signed-off-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Paul Alfille <paul.alfille@gmail.com>
Cc: Frederik Deweerdt <frederik.deweerdt@xprog.eu>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-08 08:31:13 -08:00
Evgeniy Polyakov abd52a1320 [PATCH] w1: Use mutexes instead of semaphores.
Use mutexes instead of semaphores.
Patch tested on x86_64 and i386 with test bus master driver.

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-22 11:22:50 -07:00
Evgeniy Polyakov 46e07f6e5e [PATCH] w1: Make w1 connector notifications depend on connector.
Make w1 connector notifications depend on connector.

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-22 11:22:50 -07:00
Evgeniy Polyakov 12003375ac [PATCH] w1: Userspace communication protocol over connector.
There are three types of messages between w1 core and userspace:
1. Events. They are generated each time new master or slave device found
	either due to automatic or requested search.
2. Userspace commands. Includes read/write and search/alarm search comamnds.
3. Replies to userspace commands.

From: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-22 11:22:50 -07:00
Evgeniy Polyakov 2d8331792e [PATCH] W1: w1_netlink: New init/fini netlink callbacks.
They are guarded with NETLINK_DISABLE compile time options,
so if CONFIG_NET is disabled, no linking errors occur.
Bug noticed by Adrian Bunk <bunk@stusta.de>.

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-09-08 14:41:25 -07:00
Patrick McHardy ac6d439d20 [NETLINK]: Convert netlink users to use group numbers instead of bitmasks
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2005-08-29 16:00:54 -07:00
Linus Torvalds 1da177e4c3 Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!
2005-04-16 15:20:36 -07:00