nanopi/allwinner i2c not working.

[Daniel Braniss]

> On 6 Oct 2020, at 16:26, Andriy Gapon <avg at FreeBSD.org> wrote:
> 
> On 06/10/2020 16:23, Daniel Braniss wrote:
>> 
>> 
>>> On 6 Oct 2020, at 15:53, Andriy Gapon <avg at FreeBSD.org> wrote:
>>> 
>>> On 06/10/2020 15:47, Daniel Braniss wrote:
>>>> i2c -s works - finds the devices
>>>> 
>>>> but can’t do much else, can’t talk to the device (pn532)
>>>> trying to write i get
>>>> 	I2CRWR: errno 1: Operation not permitted’
>>> 
>>> You have to use -m tr with twsi.
>> 
>> please translate :-)
> 
> Okay, please show the command line :)

ah, got it, but i use ioctl(fd, I2CRDWR,  data).

i’ll recompile and see if it’s still not working.


> 
> 
> -- 
> Andriy Gapon