Hello,2016-01-14 10:15 GMT+01:00 liuddd <liudy75@163.com>:hello£¡We know that we can write a pcsc reader driver on MacOSX10.10 and higher system. Can I write one for MacOSX10.9 and MacOSX10.8£¬I write one and put in /usr/local/libexec/SmartCardServices/drivers but it doesn't work. Is it possible to write a customer reader driver ? Thank youPut your driver in /usr/libexec/SmartCardServices/drivers/ without the "local" part.Bye--Dr. Ludovic Rousseau