i2c: Add i2c_new_probed_device()

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Add a new helper function to instantiate an i2c device. It is meant as a
replacement for i2c_new_device() when you don't know for sure at which
address your I2C/SMBus device lives. This happens frequently on TV
adapters for example, you know there is a tuner chip on the bus, but
depending on the exact board model and revision, it can live at different
addresses. So, the new i2c_new_probed_device() function will probe the bus
according to a list of addresses, and as soon as one of these addresses
responds, it will call i2c_new_device() on that one address.

This function will make it possible to port the old i2c drivers to the
new model quickly.

Signed-off-by: Jean Delvare <khali@linux-fr.org>

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Jean Delvare 2007-05-01 23:26:31 +02:00 • committed by Jean Delvare

parent 0f3b483852

commit 12b5053ac5

2 changed files with 72 additions and 0 deletions

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63

drivers/i2c/i2c-core.c

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9

include/linux/i2c.h

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