Hi,

I’d like to have an option to timeout the blocking operations.

> On Aug 25, 2016, at 9:38 AM, will sanfilippo <wi...@runtime.io> wrote:
> 
> Hello:
> 
> Comments:
> 
> +1 on no non-blocking interface. Adding a non-blocking interface later (for 
> those desiring one) should not be terribly difficult.
> 
> The API seem reasonable although I am no i2c expert by any means.
> 
> 
>> On Aug 24, 2016, at 4:37 PM, Sterling Hughes <sterl...@apache.org> wrote:
>> 
>> Hi,
>> 
>> While we’re doing the HAL changes, I’d like folks to check out the I2C APIs, 
>> and provide any comments they have:
>> 
>> https://github.com/apache/incubator-mynewt-core/blob/sterly_refactor/hw/hal/include/hal/hal_i2c.h
>> 
>> I was relatively happy with these APIs, except for maybe the 
>> hal_i2c_master_data: I think write/read should just take these three as 
>> arguments: but I didn’t see this as significant enough to change.
>> 
>> However, the one difference between SPI (new SPI HAL APIs) and UART is that 
>> I2C does not have a non-blocking mode.  I didn’t think this was a huge 
>> issue, because I assume that I2C is likely going to be mostly slow 
>> communication in a low-priority task context.  However, I’m interested to 
>> know if folks think an interrupt based/non-blocking API is desirable for 
>> I2C, and worth the implementation overhead for people developing the HAL.
>> 
>> Also, folks should feel free to review the new HAL which is here:
>> 
>> https://github.com/apache/incubator-mynewt-core/tree/sterly_refactor/hw/hal/include/hal
>> 
>> With the caveat that Will’s new SPI HAL interface isn’t committed, and we 
>> are missing a watchdog HAL (coming soon.)
>> 
>> 
>> 
>> Sterling
> 

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