12 Jul, 2007
6 commits
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This driver has been broken forever. It depends on i2c-algo-8xx which
has never been in the mainline kernel.Signed-off-by: Jean Delvare
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This is a new I2C bus driver for the TAOS evaluation modules. Developped
and tested on the TAOS TSL2550 EVM.Signed-off-by: Jean Delvare
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Add an ability to utilize the internal SRAM buffer on ICH4
and newer host controllers to speed up execution of block operations.I've split the code so that it is more clear which block transaction is
performed.First of all the host controller's type is identified. isich4 is set when
we think that the controller has the internal buffer. Then, before every
block transaction, if isich4 is set, we attempt to enable the E32B bit in
SMBAUXCTL register.Signed-off-by: Oleg Ryjkov
Signed-off-by: Jean Delvare -
Add the SMBus device ID for ATI SB700.
Signed-off-by: Henry Su
Signed-off-by: Jean Delvare -
Let the drivers specify how many bytes they want to read with
i2c_smbus_read_i2c_block_data(). So far, the block count was
hard-coded to I2C_SMBUS_BLOCK_MAX (32), which did not make much sense.
Many driver authors complained about this before, and I believe it's
about time to fix it. Right now, authors have to do technically stupid
things, such as individual byte reads or full-fledged I2C messaging,
to work around the problem. We do not want to encourage that.I even found that some bus drivers (e.g. i2c-amd8111) already
implemented I2C block read the "right" way, that is, they didn't
follow the old, broken standard. The fact that it was never noticed
before just shows how little i2c_smbus_read_i2c_block_data() was used,
which isn't that surprising given how broken its prototype was so far.There are some obvious compatiblity considerations:
* This changes the i2c_smbus_read_i2c_block_data() prototype. Users
outside the kernel tree will notice at compilation time, and will
have to update their code.
* User-space has access to i2c_smbus_xfer() directly using i2c-dev, so
the changed expectations would affect tools such as i2cdump. In order
to preserve binary compatibility, we give I2C_SMBUS_I2C_BLOCK_DATA
a new numeric value, and define I2C_SMBUS_I2C_BLOCK_BROKEN with the
old numeric value. When i2c-dev receives a transaction with the
old value, it can convert it to the new format on the fly.Signed-off-by: Jean Delvare
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The x1205 driver moved to the RTC subsystem and was significantly
modified since then, so just delete the outdated documentation.Signed-off-by: Jean Delvare
Cc: Alessandro Zummo
09 May, 2007
1 commit
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Convert files within the Documentation directory to UTF-8.
Adrian Bunk:
small additional fixesSigned-off-by: John Anthony Kazos Jr.
Signed-off-by: Adrian Bunk
02 May, 2007
5 commits
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Make the documentation on how to write and port i2c drivers more in
line with the current state of things:
* i2c-isa is deprecated and soon gone, so stop advertising it.
* Drop many sensors-specific references. Most of them were outdated
anyway.
* Update the example code to reflect the recent and not-so-recent
API and coding style preference changes.
* Simplify the example init and cleanup functions.This should make things less complex to understand for newcomers.
Signed-off-by: Jean Delvare
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Make i2c_del_driver a void function, like all other driver removal
functions. It always returned 0 even when errors occured, and nobody
ever actually checked the return value anyway. And we cannot fail
a module removal anyway.Signed-off-by: Jean Delvare
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Document the new i2c_new_device(), i2c_new_probed_device() and
i2c_unregister_device() functions.Signed-off-by: Jean Delvare
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Update Documentation/i2c to match previous patches updating probe()
and remove() logic.Signed-off-by: David Brownell
Signed-off-by: Jean Delvare -
Signed-off-by: Jean Delvare
Cc: Hans-Frieder Vogt
14 Feb, 2007
6 commits
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This simple patch adds support to i2c-parport for the One For All remote
JP1 parallel port interfaces which can be found detailed at:http://www.hifi-remote.com/jp1/hardware.shtml
These allow access to the internal configuration EEPROM on various
remote controls and there are a variety of Windows tools that make use
of this hardware. I have tested this patch with the "simple" parallel
port device and a One For All URC-7562 and confirmed that the data read
using the eeprom i2c driver matches that returned by the Windows "IR"
JP1 tool.Signed-off-by: Jonathan McDowell
Signed-off-by: Jean Delvare -
We do not have any documentation for the CX700, but it was reported
to work fine. Thanks to Claas Langbehn for testing.Signed-off-by: Jean Delvare
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Driver model updates for the I2C core:
- Add new suspend(), resume(), and shutdown() methods. Use them in the
standard driver model style; document them.- Minor doc updates to highlight zero-initialized fields in drivers, and
the driver model accessors for "clientdata".If any i2c drivers were previously using the old suspend/resume calls
in "struct driver", they were getting warning messages ... and will
now no longer work. Other than that, this patch changes no behaviors;
and it lets I2C drivers use conventional PM and shutdown support.Signed-off-by: David Brownell
Signed-off-by: Jean Delvare -
This is a frequently asked question so it deserves a paragraph in
the driver documentation.Signed-off-by: Jean Delvare
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Write data, don't read it.
Signed-off-by: Mike Frysinger
Signed-off-by: Jean Delvare -
Add support for the ATI SB600 SMBus controller.
Signed-off-by: Jean Delvare
11 Dec, 2006
3 commits
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Add the Intel ICH9/ICH8/ESB2 SMBus Controller text to
i2c-i801 documentation.Signed-off-by: Jason Gaston
Signed-off-by: Jean Delvare -
Summary of changes:
- fixes:
o legacy I/O region size is 64 bytes, not 8 bytes
- general cleanup:
o removed code for the unsupported I2C block data, block data,
proc call and block proc call transfer modes
o removed detail warnings about unsupported modes that are
covered in a general warning (unsupported transaction...)
anyway
o removed necessity of a definition of struct i2c_adapter
o moved definition of struct i2c_algorithm, making forward
declarations of nforce2_access and nforce2_func unnecessary
- minor changes:
o in the description mention the nForce 5xx chipsets
o changes my e-mail address in MODULE_AUTHORTheses cleanups shrink the driver binary size from 4.0 kB to 2.7 kB
on i386.Signed-off-by: Hans-Frieder Vogt
Signed-off-by: Jean Delvare -
Fix typos in i2c bus drivers documentation.
Signed-off-by: Jean Delvare
27 Sep, 2006
2 commits
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i2c-viapro: Add support for the VT8237A and VT8251
Documentation update included. Compile tested.
Signed-off-by: Rudolf Marek
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
i2c-stub: Chip address as a module parameter
Add a mandatory chip_addr parameter to i2c-stub. This parameter
defines to which chip address the driver will respond, instead of
reponding to all addresses as before. The idea is to prevent the
users from loading i2c-stub at random and being then confused by
the results of sensors-detect or other user-space tools.Signed-off-by: Jean Delvare
Signed-off-by: Mark M. Hoffman
Signed-off-by: Greg Kroah-Hartman
13 Jul, 2006
1 commit
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We have a new mailing list dedicated to linux i2c:
http://lists.lm-sensors.org/mailman/listinfo/i2cSigned-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman
23 Jun, 2006
8 commits
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i2c-i801: Remove force_addr parameter
Remove the force_addr module parameter. It doesn't appear to ever
have been needed, and PCI resources shouldn't be arbitrarily
changed anyway.Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
Documentation update for the scx200_acb driver. Hopefully this will
help future users.References:
[lm-sensors] Support of i2c-nscacb (April, May 2005)
http://lists.lm-sensors.org/pipermail/lm-sensors/2005-April/011756.html
http://lists.lm-sensors.org/pipermail/lm-sensors/2005-May/012043.html[lm-sensors] making a geode i2c slave driver (April 2006)
http://lists.lm-sensors.org/pipermail/lm-sensors/2006-April/015998.htmlKernel bug #6445
http://bugzilla.kernel.org/show_bug.cgi?id=6445Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
The following patch adds support for the OpenCores I2C controller IP
core (See http://www.opencores.org/projects.cgi/web/i2c/overview).Signed-off-by: Peter Korsgaard
Signed-off-by: Andrew Morton
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
Add support for the new nForce4 MCP51 (also known as nForce 410 or
430) and nForce4 MCP55 to the i2c-nforce2 driver. Some code changes
were required because the base I/O address registers have changed in
these versions. Standard BARs are now being used, while the original
nForce2 chips used non-standard ones.Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
Properly document on which systems the i2c-piix4 SMBus driver will
refuse to load. Hopefully this will make it clearer for users, which
were often wondering why their destop or server systems were detected
as laptops.Closes bug #6429.
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
Fix i2c-piix4 documentation typo.
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
This patch removes the fix_hstcfg option from the driver and related
SMBus Interrupt Select register magic because now we know what are
valid values for this register. This patch updates the documentation
and adds new IRQ mode check so we are sure not to miss any new
"unusual" value.The PCI quirk for users of fix_hstcfg was not developed because the
chipset lacks of subsystem ID registers and DMI is stated "To be
filled". Impact to existing systems is minimal because the problem
showed up on motherboards like 10 years back. On the other hand users
of newer Serverworks and HT1000 systems won't be misleaded by the
message suggesting to try the fix_hstcfg any more.Signed-off-by: Rudolf Marek
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
This patch adds the ATI IXP southbridges support to i2c-piix4,
as it turned out those chips are compatible with it.Signed-off-by: Rudolf Marek
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman
15 Apr, 2006
1 commit
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This patch forces the user to specify what type of adapter is present when
loading i2c-parport or i2c-parport-light. If none is specified, the driver
init simply fails - instead of assuming adapter type 0.This alleviates the sometimes lengthy boot time delays which can be caused
by accidentally building one of these into a kernel along with several i2c
slave drivers that have lengthy probe routines (e.g. hwmon drivers).Kconfig and documentation updated accordingly.
Signed-off-by: Mark M. Hoffman
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman
24 Mar, 2006
2 commits
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Add Broadcom HT-1000 south bridge's PCI ID to i2c-piix driver. Note
that at least on Supermicro H8SSL it uses non-standard SMBHSTCFG = 3
and standard values like 0 or 9 causes hangup.Signed-off-by: Martin Devera
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
scx200_acb: Minimal documentation update
Signed-off-by: Ben Gardner
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman
07 Feb, 2006
1 commit
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This patch just renames the documentation file to correct file name.
i2c-sis69x -> i2c-sis96x.Signed-off-by: Rudolf Marek
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman
06 Jan, 2006
4 commits
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One more supported PCI ID for the i2c-nforce2 driver.
Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
Document i2c_driver.command as being deprecated, and don't suggest an
empty implementation of this callback as it doesn't make any sense.Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
Update the i2c documentation to reflect the recent change to
i2c_add_driver.Signed-off-by: Jean Delvare
Signed-off-by: Greg Kroah-Hartman -
Document the drop of the owner and name fields of the i2c_driver
structure.Signed-off-by: Jean Delvare
CC: Laurent Riffard
Signed-off-by: Greg Kroah-Hartman