Re: [PATCH 2/3] i2c: add support for Cypress CYUSBS234 USB-I2C adapter

[Johan Hovold <johan@kernel.org>]

On Thu, Sep 25, 2014 at 05:46:16AM +0000, Muthu Mani wrote:

> > > +static int cy_i2c_xfer(struct i2c_adapter *adapter,
> > > +                    struct i2c_msg *msgs, int num) {
> > > +     int ret = 0;
> > > +     struct cyusbs_i2c *cy_i2c;
> > > +     struct cyusbs23x *cyusbs = (struct cyusbs23x
> > > +*)adapter->algo_data;
> > > +
> > > +     dev_dbg(&adapter->dev, "%s\n", __func__);
> > > +
> > > +     if (num > 1) {
> > > +             dev_err(&adapter->dev, "i2c_msg number is > 1\n");
> > > +             return -EIO;
> > > +     }
> > 
> > Why not handle multiple messages?
> 
> This iteration of the driver is designed to handle only a single
> message at a time.
> It can be expanded to handle multiple messages in future.

No, please do that now. It's just a matter of adding a for loop.

Thanks,
Johan