Hi Greg, We have two Digi Edgeport devices. I will call them A and B. If I only have A then ttyUSB0-7 correspond to ports 1-8 on A respectively. The same applies if I only have B. When I have A and B, then I get something like this: ttyUSB0 - Unit B port 3 ttyUSB1 - Unit B port 4 ttyUSB2 - Unit B port 5 ttyUSB3 - Unit B port 6 ttyUSB4 - Unit B port 1 ttyUSB5 - Unit B port 2 ttyUSB6 - Unit A port 3 ttyUSB7 - Unit A port 4 ttyUSB8 - Unit A port 1 ttyUSB9 - Unit A port 2 ttyUSB10 - Unit B port 7 ttyUSB11 - Unit B port 8 ttyUSB12 - Unit A port 5 ttyUSB13 - Unit A port 6 ttyUSB14 - Unit A port 7 ttyUSB15 - Unit A port 8 I have not contacted Red Hat or CentOS yet. Howard -----Original Message----- From: Greg KH [mailto:gregkh@xxxxxxxxxxxxxxxxxxx] Sent: Wednesday, February 03, 2016 8:24 PM To: Howard Lum (holum) <holum@xxxxxxxxx> Cc: linux-usb@xxxxxxxxxxxxxxx Subject: Re: Multiple Digi Edgeport devices on CentOS 7 On Wed, Feb 03, 2016 at 10:56:38PM +0000, Howard Lum (holum) wrote: > When I connect a single Digi Edgeport device to CentOS 7, I get > /dev/ttyUSB0-7 and I can access all eight ports in order. When I > connect a second Edgeport device, the ports are mixed up and not all > are accessible. How can I fix this? What do you mean by "mixed up"? And for a distro kernel, you really need to get support from that distro, there's no way we have any idea what kernel they are using, or what patches they have applied. Have you contacted them first? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
