Hi All, I am using a Linux X86 machine where Xilinx FPGA sound card connected to X86 machine's PCIe slot. The sound card supports PCM playback and capture capabilities. I need to write an ALSA driver for my sound card. Since I am using X86 machine and it don't have the devicetree, can someone please suggest the what driver architecture I should use for this type of sound card, also please point me to the ALSA driver reference code for this type of sound card. -- Thanks, Sekhar