mirror of
https://github.com/lm-sensors/lm-sensors.git
synced 2026-10-15 10:39:31 +00:00
Mark D. Studebaker
7336a798c9
git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@931 7894878c-1315-0410-8ee3-d5d059ff63e0
71 lines
2.8 KiB
Plaintext
71 lines
2.8 KiB
Plaintext
These are the steps you should follow to write a new driver and
|
|
submit it to us so that it will be applied cleanly to our package.
|
|
|
|
* Contact us first.
|
|
You are of course free to write your own drivers, but it is smart to
|
|
check first nobody else is already working on it.
|
|
Check our "New Drivers" page for information also.
|
|
|
|
* Write the new driver.
|
|
For a chip driver, use lm78.c as template. For an SMBus-only adapter,
|
|
use i2c-piix4.c. Use i2c-via.c for an I2C-level adapter.
|
|
Usually, we make all prefixes start with the driver name. This is not
|
|
really necessary, as these symbols will not be exported anyway. But by
|
|
doing this, you are sure you do not shadow any global kernel names.
|
|
Remember that you want to output the direct measurements done by the
|
|
chip. If these sensor values need scaling, this should be done through
|
|
the configuration file.
|
|
|
|
* Meet Kernel coding standards
|
|
See Documentation/CodingStyle in the kernel source.
|
|
Be sure and use 8 column tabs.
|
|
|
|
* Add the driver to the Makefile.
|
|
Usually, you can just add it to KERNEL{CHIPS,DRIVERS}TARGETS in the
|
|
Module.mk file in the directory itself.
|
|
|
|
* Make sure it compiles cleanly.
|
|
If you compile with 'make WARN=1', you usually get many additional
|
|
warnings. Please resolve these too, even if you know they are
|
|
harmless. Do the same with 'make DEBUG=1 WARN=1' if you use debugging
|
|
information. Remember, things put between #ifdef DEBUG #endif may never
|
|
stop the driver from functioning; they should just output additional
|
|
information.
|
|
|
|
* Check for external symbols
|
|
'nm --extern --defined' should only output symbols starting with __module,
|
|
cleanup_module, init_module and some kernel versioning symbols. Mark all
|
|
other symbols as static in your source file.
|
|
|
|
* Test the module
|
|
This is usually the boring part...
|
|
Test both with 2.2.x and 2.4.x kernels.
|
|
|
|
* Add detection information to prog/detect/sensors-detect
|
|
This is a perl script that automatically detects what chips and adapters
|
|
are present. Contact Frodo if you need help.
|
|
|
|
* Add chip information to lib/chips.{c,h} for chip drivers
|
|
Until you have done this, the chip will be invisible for user-level
|
|
programs. Again, contact Frodo if you need help with this.
|
|
|
|
* Add entries to etc/sensors.conf.eg
|
|
If needed, you can set defaults here.
|
|
|
|
* Add a dedicated procedure to prog/sensors/chips.[ch]
|
|
This makes the included sensors program pretty-print your chip information.
|
|
|
|
* Add the name of the device to the README file.
|
|
|
|
* Add your name to the CONTRIBUTORS file.
|
|
|
|
* Add entries to the CHANGES file.
|
|
|
|
* Write a doc/chips/xxx or doc/busses/xxx file.
|
|
|
|
* Make sure the GPL boilerplate and your name (and if applicable your
|
|
company's name) is at the top of the
|
|
new driver so we know you are giving it to us under the GPL.
|
|
|
|
* Submit the changes to us a patch against CVS.
|