Re: [PATCH v6 1/1] PCI/sysfs: Expose PCIe device serial number

[Thomas Weißschuh]

On Fri, Jul 18, 2025 at 12:32:29PM -0700, Matthew Wood wrote:
> Add a single sysfs read-only interface for reading PCIe device serial
> numbers from userspace in a programmatic way. This device attribute
> uses the same hexadecimal 1-byte dashed formatting as lspci serial number
> capability output. If a device doesn't support the serial number
> capability, the serial_number sysfs attribute will not be visible.
> 
> Signed-off-by: Matthew Wood <thepacketgeek@xxxxxxxxx>
> Reviewed-by: Mario Limonciello <superm1@xxxxxxxxxx>

Reviewed-by: Thomas Weißschuh <thomas.weissschuh@xxxxxxxxxxxxx>

> ---
>  Documentation/ABI/testing/sysfs-bus-pci |  9 +++++++++
>  drivers/pci/pci-sysfs.c                 | 27 ++++++++++++++++++++++---
>  2 files changed, 33 insertions(+), 3 deletions(-)

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