Certainly the driver in the vanilla kernel later than 2.6.31.4 works fine on x86_64.
The Changelog for the latest proposed kernel seems to show the relevant upgrade. b...@srv:~$ cat /proc/cpuinfo | grep model model : 2 model name : AMD Phenom(tm) 9750 Quad-Core Processor <snip> b...@srv:~$ uname -a Linux srv 2.6.31.5 #16 SMP Sat Oct 24 12:58:49 WST 2009 x86_64 GNU/Linux b...@srv:~$ lspci | grep USB 00:0a.0 USB Controller: nVidia Corporation MCP55 USB Controller (rev a1) 00:0a.1 USB Controller: nVidia Corporation MCP55 USB Controller (rev a2) I don't use an Arduino, I use a Parallax Propeller, but the ftdi device is the same. -- ftdi serial driver broken in linux-image-2.6.31-14-generic (2.6.31-14.48) https://bugs.launchpad.net/bugs/460857 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs