07 Feb, 2008
1 commit
-
Add a GPIO 1-wire bus master driver. The driver used the GPIO API to
control the wire and the GPIO pin can be specified using platform data
similar to i2c-gpio. The driver was tested with AT91SAM9260 + DS2401.Signed-off-by: Ville Syrjala
Cc: Evgeniy Polyakov
Cc: David Brownell
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
17 Oct, 2007
1 commit
-
Two 00-INDEX files under Documentation/w1
Signed-off-by: Rob Landley
Acked-by: Evgeniy Polyakov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
23 Jun, 2006
3 commits
-
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
Signed-off-by: Greg Kroah-Hartman -
Special file in each w1 slave device's directory called "rw" is created
each time new slave and no appropriate w1 family is registered.
"rw" file supports read and write operations, which allows to perform
almost any kind of operations. Each logical operation is a transaction
in nature, which can contain several (two or one) low-level operations.
Let's see how one can read EEPROM context:
1. one must write control buffer, i.e. buffer containing command byte
and two byte address. At this step bus is reset and appropriate device
is selected using either W1_SKIP_ROM or W1_MATCH_ROM command.
Then provided control buffer is being written to the wire.
2. reading. This will issue reading eeprom response.It is possible that between 1. and 2. w1 master thread will reset bus for
searching and slave device will be even removed, but in this case 0xff will
be read, since no device was selected.Signed-off-by: Evgeniy Polyakov
Signed-off-by: Greg Kroah-Hartman
24 Mar, 2006
1 commit
-
Signed-off-by: Ben Gardner
Signed-off-by: Evgeniy Polyakov
Signed-off-by: Greg Kroah-Hartman
22 Jun, 2005
1 commit
-
Updates the w1 documentation (w1.generic)
Signed-off-by: Ben Gardner
Signed-off-by: Evgeniy Polyakov
Signed-off-by: Greg Kroah-Hartman
17 Apr, 2005
1 commit
-
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!