Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access

On Tue, 2006-05-02 at 15:00 -0400, Jon Smirl wrote:
> I also can not see how user space suspend/resume can
> disable PCI hardware without coordinating with an active device
> driver.

And that's not a reasonable thing for userspace to do, if an active
device driver is using that.  But sometimes it might want to turn a
device on, perform some action, and then disable it again.

[...]
> You may call this silly but it is a real pain to spend hours debugging
> code only to discover that it failed because some other app unknown to
> you altered the state of the hardware while you were using it.

"Doctor, it hurts when I stab myself in the eye..."

-- 
  Peter

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---

• References:
  • Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
    • From: Arjan van de Ven <[email protected]>
  • Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
    • From: "Jon Smirl" <[email protected]>
  • Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
    • From: Arjan van de Ven <[email protected]>
  • Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
    • From: "Jon Smirl" <[email protected]>
  • Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
    • From: Arjan van de Ven <[email protected]>
  • Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
    • From: "Jon Smirl" <[email protected]>
  • Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
    • From: Arjan van de Ven <[email protected]>
  • Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
    • From: "Jon Smirl" <[email protected]>

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