Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
- From: "Dave Airlie" <airlied@xxxxxxxxx>
- Date: Sat, 6 May 2006 11:57:12 +1000
It has everything to do with the 'enable' file. The 'enable' file lets
you change the state of the hardware without an ownership mechanism.
Other device users will not be notified of the state change. Since the
other users can't be sure of the state of the hardware when they are
activated, they will have to reload their state into the hardware on
every activation.
Jon
you seem to miss the fact that this can be done now without the enable
flag, setpci can be used to disable the BARs, again the enable flag
doesn't change that....
Dave.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
- Follow-Ups:
- References:
- Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
- From: Martin Mares
- Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
- From: Peter Jones
- Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
- From: Ian Romanick
- 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
- Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
- From: Greg KH
- 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
- Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
- From: Greg KH
- 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
- Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
- From: Greg KH
- 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
- Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
- Prev by Date: [PATCH] Time: optimize out some mults, since gcc can't avoid them
- Next by Date: Re: [PATCH 0/5] clocksource patches
- Previous by thread: Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
- Next by thread: Re: Add a "enable" sysfs attribute to the pci devices to allow userspace (Xorg) to enable devices without doing foul direct access
- Index(es):
Relevant Pages
|
