RE: [PATCH v8 5/6] i2c: Add support for Intel LJCA USB I2C driver

From: Wu, Wentong
Date: Tue Jun 20 2023 - 02:57:28 EST


Hi Oliver,

Thanks for your review.

> -----Original Message-----
> From: Oliver Neukum <oneukum@xxxxxxxx>
> Sent: Monday, May 22, 2023 5:50 PM
>
> On 11.05.23 19:58, Ye Xiang wrote:
> > Implements the I2C function of Intel USB-I2C/GPIO/SPI adapter device
> > named "La Jolla Cove Adapter" (LJCA). It communicate with LJCA I2c
> > module with specific protocol through interfaces exported by LJCA USB
> > driver.
>
> > +/* I2C Transfer */
> > +struct i2c_xfer {
> > + u8 id;
> > + u8 slave;
> > + u16 flag; /* speed, 8/16bit addr, addr increase, etc */
> > + u16 addr;
> > + u16 len;
> > + u8 data[];
> > +} __packed;
>
> Where is this needed?

Yes, you're right, we don’t need this structure. Thanks

> Why is it defined __packed, yet the internal endianness is not declared?
>
> Regards
> Oliver