Bridges renamed from "fpga-bridge" to "fpga_bridge" - which linux version?

Linux Kernel
1

Hello,
In Linux Kernel version 4.7.0 under /sys/class there seem to be three fpga related entries
/sys/class/fpga_bridge
/sys/class/fpga_manager
/sys/class/fpga_region

On earlier versions of the kernel the bridges were at
/sys/class/fpga-bridge.

Does anyone know what is the latest version of the kernel where they are stilled at /sys/class/fpga-bridge ?
As this is where the OpenCL v17.0 (and earlier) drivers seem to expect them.

Thanks in advance.
J

2

I’ll answer my own question.
It looks like the changes to the FPGA drivers were introduced in the V4 Linux kernel so as far as I can work out, only V3 kernels will work with Altera’s OpenCL (V17) on their SoC devices.
Does anyone know whether Intel-Altera intend to support V4 kernels with their OpenCL?

Best wishes,

J