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From: John Baldwin <jhb@freebsd.org>
To: freebsd-hackers@freebsd.org,
 Nomad Esst <noname.esst@yahoo.com>
Subject: Re: Access pci devices' serial numbers programmatically
Date: Tue, 14 Jan 2014 08:24:03 -0500
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On Tuesday, January 14, 2014 1:08:55 am Nomad Esst wrote:
> Thank you. The thing is one of the input arguments of this function is 
device_t. How can I get this struct by device name so I can pass it to 
pci_get_vpd_readonly function?

If you are in a device driver method such as probe or attach, you should
already have the device_t available.  Are you trying to query this from
userland?

-- 
John Baldwin