BSPs/FRI2

Resources

Latest FRI2 README

Tips

Use this space to share tips about using the FRI2. If you didn't find it in the README and it took you longer than 5 minutes to figure it out, consider placing it here and we can work it into the README as appropriate.

Tip Name

Obtaining the ti_3410.fw file needed by ti_usb_3410_5052

Debian (and perhaps other Linux distros) do not package ti_3410.fw (no, not even in lfirmware-linux-nonfree). The following bash script will use git to obtain just the one file from kernel.org and move it to where "modprobe ti_usb_3410_5052" will find it:

  #!/bin/bash
  sudo apt-get install git
  git clone -n git://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git --depth 1
  cd linux-firmware
  git checkout HEAD ti_3410.fw
  sudo cp -p ti_3410.fw /lib/firmware

The script is tested on Debian with 3.1.0 kernel and will need to be modified if your system uses RPM and/or does not follow the standard filesystem hierarchy.

Known Issues

Warning at arch/x86/kernel/apic/ipi.c

WARNING: at [...] linux-yocto-3.2.18+git1+5b4c9dc78b5ae607173cc3ddab9bce1b5f78129b_1+76dc683eccc46804729a76b9d2fd425ba540a483-r1/linux/arch/x86/kernel/apic/ipi.c:109 default_send_IPI_mask_logical+0xa4/0xe0()
Hardware name: Fish River Island II
empty IPI mask
Modules linked in:
Pid: 1, comm: swapper/0 Not tainted 3.2.18-yocto-standard #1
Call Trace:
 [<c103b8d3>] warn_slowpath_common+0x73/0xa0
 [<c1018234>] ? default_send_IPI_mask_logical+0xa4/0xe0
 ...

This appears to be a known issue with how IPIs are handled within the generic SMP infrastructure. A fix is being discussed on LKML, but the warning appears to be benign.