Hi, yes! From a first look this nails it for me. Thanks for doing it.
Minor comments follow... > +#if 0 > + /* > + * sccb_xfer not needed yet, since there is no driver support currently. > + * Just showing how it should be done if we ever need it. > + */ > + if (adap->algo->sccb_xfer) > + return true; > +#endif I think this should be a more generic comment in the header, like /* * If we ever want support for hardware doing SCCB natively, we will * introduce a sccb_xfer() callback to struct i2c_algorithm and check * for it here. */ > +/** > + * sccb_read_byte - Read data from SCCB slave device > + * @client: Handle to slave device > + * @addr: Register to be read from I think 'addr' is too easy to confuse with client->addr. SMBus uses 'command' but I am also fine with 'reg' because we will deal with registers. > + * This executes the 2-phase write transmission cycle that is followed by a > + * 2-phase read transmission cycle, returning negative errno else a data byte > + * received from the device. > + */ Nice docs! > +/** > + * sccb_write_byte - Write data to SCCB slave device > + * @client: Handle to slave device > + * @addr: Register to write to 'reg'? Kind regards, Wolfram
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