From: Albert Cahalan <albert@users.sf.net>
To: linux-kernel mailing list <linux-kernel@vger.kernel.org>
Cc: peterc@gelato.unsw.edu.au
Subject: Re: User mode drivers: part 2: PCI device handling (patch 1/2 for 2.6.11)
Date: Fri, 11 Mar 2005 00:18:27 -0500 [thread overview]
Message-ID: <1110518308.1949.67.camel@cube> (raw)
Peter Chubb writes:
> There are three new system calls:
>
> long usr_pci_open(int bus, int slot, int function, __u64 dma_mask);
> Returns a filedescriptor for the PCI device described
> by bus,slot,function. It also enables the device, and sets it
> up as a bus-mastering DMA device, with the specified dma mask.
You forgot the PCI domain (a.k.a. hose, phb...) number.
Also, you might encode bus,slot,function according to
the PCI spec. So that gives:
long usr_pci_open(unsigned pcidomain, unsigned devspec, __u64 dmamask);
(with the user library returning an int instead of long)
next reply other threads:[~2005-03-11 5:32 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-03-11 5:18 Albert Cahalan [this message]
2005-03-11 19:15 ` User mode drivers: part 2: PCI device handling (patch 1/2 for 2.6.11) Alan Cox
2005-03-11 21:04 ` Albert Cahalan
2005-03-14 13:34 ` Alan Cox
-- strict thread matches above, loose matches on Subject: below --
2005-03-11 3:37 Peter Chubb
2005-03-11 7:18 ` Greg KH
2005-03-11 8:34 ` Peter Chubb
2005-03-11 10:31 ` Pavel Machek
2005-03-11 15:21 ` Greg KH
2005-03-11 16:45 ` Jesse Barnes
2005-03-12 22:43 ` Jon Smirl
2005-03-14 0:13 ` Peter Chubb
2005-03-14 17:46 ` Alan Cox
2005-03-11 19:16 ` Alan Cox
2005-03-12 10:49 ` Andrew Grover
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