Messages in this thread | | | From | David Brownell <> | Subject | Re: [PATCH] Add tsc2007 based touchscreen driver. | Date | Thu, 4 Dec 2008 01:56:54 -0800 |
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On Thursday 04 December 2008, Felipe Balbi wrote: > i2c subsystem has smbus emulation. The special reason is just that it's > simpler for the driver writer ;-)
I'd have said "more portable", actually. I2C hosts can do pretty much everything an SMBus host can, but the converse is not true.
And re i2c_check_functionality() ... yes, use it to make sure each I2C or SMBus call the driver makes is supported by the underlying controller.
- Dave
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