On Sun, Jan 14, 2007 at 09:10:59AM +0300, Andrey Borzenkov wrote:
> Pierre Ossman wrote:
>
> > Hi guys,
> >
> > I just wanted to know the rationale behind
> > 99ef3ef8d5f2f5b5312627127ad63df27c0d0d05 (no more "device" symlink in
> > class devices). I thought that was a rather convenient way of finding
> > which physical device the class device was coupled to.
> >
>
> Actually I wonder why those links still present even when I told system not
> to create them?
>
> {pts/1}% grep DEPRE /boot/config
> # CONFIG_SYSFS_DEPRECATED is not set
> # CONFIG_PM_SYSFS_DEPRECATED is not set
> {pts/1}% find /sys/class -name device
> /sys/class/pcmcia_socket/pcmcia_socket2/device
> /sys/class/pcmcia_socket/pcmcia_socket1/device
> /sys/class/pcmcia_socket/pcmcia_socket0/device
> /sys/class/usb_device/usbdev1.1/device
> /sys/class/usb_host/usb_host1/device
> /sys/class/scsi_disk/0:0:0:0/device
> /sys/class/scsi_device/1:0:0:0/device
> /sys/class/scsi_device/0:0:0:0/device
> /sys/class/scsi_host/host1/device
> /sys/class/scsi_host/host0/device
> /sys/class/net/eth0/device
> /sys/class/net/eth1/device
> /sys/class/input/input1/ts0/device
> /sys/class/input/input1/mouse0/device
> /sys/class/input/input1/event1/device
> /sys/class/input/input1/device
> /sys/class/input/input0/event0/device
> /sys/class/input/input0/device
> {pts/1}% uname -a
> Linux cooker 2.6.20-rc5-1avb #10 Sat Jan 13 14:05:34 MSK 2007 i686 Pentium
> III (Coppermine) GNU/Linux
Because I haven't finished converting all of the different usages of
struct class_device to struct device just yet. When that happens, those
links go away, as the /sys/class/foo_class/foo is a symlink itself into
the /sys/devices/ tree.
If you look in the -mm tree there is a patch for the network devices,
and I have patches in my tree (but not -mm) for pcmcia, usb_host,
usb_device, and input. These patches still need a bit of work before
sending them on to their relative maintainers for acceptance.
Hope this helps explain things,
greg k-h
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