On Tue, 17 Jan 2012 14:49:01 +0000, Srinivasan, Nageswari wrote: > We have a slave device which requires more than 500 registers > to be configured. (kind of bulk write) So, looking for an option > of configuring all of them in single command. How long will it take? You should ask yourself if it really OK to block the bus for so long. What happens if you configure the chip in several goes? The time penalty shouldn't be that big and I can't believe a chip can't be configured one register after the other (or at least group by group.) If you really have to do it all in one go (and even if not) you should check if the chip supports register address pointer autoincrement (or block writes.) This would let you write several register values in one message, so you no longer have to send 500 messages, plus this would be faster than your current strategy. -- Jean Delvare -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
