On Fri, 29 Jun 2012 16:35:25 +0530, Shubhrajyoti D wrote: > In case of a NACK, it's wise to tell our clients > drivers about how many bytes were actually transferred. > > Support this by adding an extra field to the struct > i2c_msg which gets incremented the amount of bytes > actually transferred. > > Signed-off-by: Shubhrajyoti D <[email protected]> > Signed-off-by: Felipe Balbi <[email protected]> > --- > include/linux/i2c.h | 1 + > 1 files changed, 1 insertions(+), 0 deletions(-) > > diff --git a/include/linux/i2c.h b/include/linux/i2c.h > index ddfa041..0cb6b83 100644 > --- a/include/linux/i2c.h > +++ b/include/linux/i2c.h > @@ -547,6 +547,7 @@ struct i2c_msg { > #define I2C_M_NO_RD_ACK 0x0800 /* if > I2C_FUNC_PROTOCOL_MANGLING */ > #define I2C_M_RECV_LEN 0x0400 /* length will be first > received byte */ > __u16 len; /* msg length */ > + __u16 actual; /* actual bytes transferred */ > __u8 *buf; /* pointer to msg data */ > }; >
Oh, as a side note: I don't much like the name "actual". It's not really clear what it means. I don't have a perfect name to propose as a replacement, but maybe "transferred" or even just "done" would do. -- Jean Delvare -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
