From: linkasim@gmail.com (Asim)
To: kernelnewbies@lists.kernelnewbies.org
Subject: pci config space
Date: Sun, 20 Feb 2011 14:27:51 -0600 [thread overview]
Message-ID: <AANLkTimPAwUe1CVLmBTvpMgrWzce6uZ3J69WHQkYxxc1@mail.gmail.com> (raw)
In-Reply-To: <20110220053319.GB10532@kroah.com>
Thanks for your response.
On Sat, Feb 19, 2011 at 11:33 PM, Greg KH <greg@kroah.com> wrote:
> On Sat, Feb 19, 2011 at 03:32:51PM -0600, Asim wrote:
>> Hi,
>>
>> While this may just be connecting the dots, I am not able to fully
>> understand how pci_save_state works.
>>
>> I see that the pci_save_state and pci_restore_state are invoked at
>> suspend and resume. ?This saves the PCI configuration registers during
>> suspend. Are these the device registers or bridge registers?
>
> It depends if the device is a device or a bridge :)
>
>> Consequently, is the pci_save_state and driver suspend routine saving
>> the full device state/device state exposed to PCI or PCI state ?
>
> Yes.
>
> Hope this helps,
>
> greg k-h
>
prev parent reply other threads:[~2011-02-20 20:27 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-19 21:32 pci config space Asim
2011-02-20 5:33 ` Greg KH
2011-02-20 20:27 ` Asim [this message]
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