[chirp_users] Once Again, Yosemite Has Broken CHIRP

David Ranch
Sun Jul 19 10:18:09 PDT 2015

Just a heads up for you OSX users thinking of upgrading to the next 
version of OSX: El Capitan.  Unsigned drivers will no longer be 
supported (existing methods to allow unsigned drivers is being removed):



On 07/09/2015 10:29 AM, Daniel Lichterman wrote:
> Pat - there was a post on this group last month regarding this and the 
> solution:
> ===============================================================
> Here is what I found. The driver is the issue with Yosemite.  The 
> built-in FTDI driver prevents the osx-pl2303 driver from loading.  The 
> fix (not for the faint of heart) is to do some black magic at the 
> command line.
> In Terminal, enter:
> sudo nvram boot-args="kext-dev-mode=1"
> This allows other drivers to load.  The driver that works for me is 
> the Lion driver from miklor.com <http://miklor.com/>.

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