Chapter 20. Using the Proc Filesystem Interface
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## Chapter 20. Using the Proc Filesystem Interface

You can use the /proc filesystem interface to obtain run-time information about the driver and any installed NVIDIA graphics cards.

This information is contained in several files in /proc/driver/nvidia.

/proc/driver/nvidia/version

  Lists the installed driver revision and the version of the GNU C compiler used to build the Linux kernel module.

/proc/driver/nvidia/warnings

  The NVIDIA graphics driver tries to detect potential problems with the host system's kernel and warns about them using the kernel's printk() mechanism, typically logged by the system to `/var/log/messages`.

  Important NVIDIA warning messages are also logged to dedicated text files in this /proc directory.

/proc/driver/nvidia/gpus/domain:bus:device.function/information

  Provide information about each of the installed NVIDIA graphics adapters (model name, IRQ, BIOS version, Bus Type). Note that the BIOS version is only available while X is running.

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