Erm, unless you mean board.  I'm using a Beaglebone Black Rev C running 
debian.

uname -a

Linux beaglebone 4.9.36-ti-r46 #1 SMP PREEMPT Tue Jul 11 21:05:08 UTC 2017 
armv7l GNU/Linux

On Monday, February 12, 2018 at 5:07:37 PM UTC-8, Wulf Man wrote:
>
> what part
>
> On 2/12/2018 6:03 PM, Andrew P. Lentvorski wrote:
>
> I'm trying to communicate with an I2C chip which returns the length of the 
> bytes to be read in the first byte of the transaction.  This is fairly 
> straightforward on most primitive microcontrollers. 
>
> But for the life of me, I cannot figure out how to do this on Linux.  A 
> "read" always wants to put a stop bit after the transaction.  I see 
> "I2C_M_NOSTART" which is probably what I need for the data bytes, but I 
> don't see a corresponding I2C_M_NOSTOP which is what I need for the first 
> byte.
>
> Any help would be appreciated.  Thanks.
>
> What I need is this transaction sequence:
>
> <START> <len byte:0x02><ACK>(PROBLEM HERE--master processes length 
> byte)<data byte:0x00><ACK><data_byte:0x01><NACK><STOP>
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