On Tue, 9 Oct 2012, Jean Delvare wrote: > Hi Julia, > > On Mon, 8 Oct 2012 07:24:11 +0200 (CEST), Julia Lawall wrote: > > > Sorry, I mean either: > > > > > > I2C_MSG_WRITE(priv->cfg->i2c_address, ®, sizeof(reg)), > > > I2C_MSG_READ(priv->cfg->i2c_address, val, sizeof(*val)), > > > > Of course. Sorry for not having seen that. I can do that. > > Eek, no, you can't, not in the general case at least. sizeof(*val) will > return the size of the _first_ element of the destination buffer, which > has nothing to do with the length of that buffer (which in turn might > be rightfully longer than the read length for this specific message.)
I was actually only going to do it when the size was 1 and the type was u8 *. But your other email suggests that converting to sizeof is just not a good idea at all. So I will drop that part of the rule. julia -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
