> On 7 Jun 2017, at 23:44, Liviu Ionescu <[email protected]> wrote:
> 
> if I connect the board to my macOS 10.12, with the default FTDI drivers 
> installed in the system, I automatically get two 'Dual RS232-HS' interfaces:
<snip>

A kernel mode driver has grabbed the device, either Apple’s AppleUSBFTDI or 
FTDI’s own. To find out which, try eg. “kextstat | grep -i ftdi”, or 
IORegistryExplorer.

The driver can be temporarily disabled, as described here: 
<https://www.decisivetactics.com/support/view?article=disable-appleusbftdi-driver
 
<https://www.decisivetactics.com/support/view?article=disable-appleusbftdi-driver>>.
 You can also install a codeless kext to prevent any other driver from matching 
the device, see 
<https://developer.apple.com/library/content/technotes/tn2315/_index.html 
<https://developer.apple.com/library/content/technotes/tn2315/_index.html>>

Regards,
Anders
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