Re: [PATCH 16/37] PCI: endpoint: Introduce configfs entry for configuring EP functions

From: Christoph Hellwig
Date: Mon Jan 16 2017 - 10:51:27 EST


On Mon, Jan 16, 2017 at 11:31:23AM +0530, Kishon Vijay Abraham I wrote:
> Actually not all devices have hardcoded headers. E.g the platform I'm using
> doesn't have hardcoded headers and it can be configured based on the function
> the user would like to use. If the devices are hardcoded, then using configfs
> can be skipped altogether. In such cases, APIs like pci_epf_create() can
> directly be used by the drivers instead of going via configfs.

That's exactly what I meant - the IDs need to be set by the driver for
the implemented PCI device, and it's not up to the gadget core to configur
e them, it's up to the implementation of the PCIe device which PCI it
exposes.