On Tue, 26 Aug 2008, Jared D. McNeill wrote (on source-changes list):
... the existing i2c code includes a bus scan to enumerate the devices on the bus, however this loop is currently #ifdef'd out. It is unclear (to me, at least) if this enumeration has ever been tested, or if it's probing of bus addresses is both reliable and non-intrusive; I have to assume that it was #ifdef'd out for a reason. ...It was causing hangs at boot on some machines and erratic behaviour on others, which was why it was disabled.
Would it make sense to conditionally enable this code, perhaps via an
options I2C_SCAN
or maybe add a flag "locator" to i2c ?
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