On Sat, Aug 13, 2005 at 02:39:56PM -0700, Greg KH wrote: > Heh, I already have a patch like this pending for 2.6.14 at: > http://www.kernel.org/pub/linux/kernel/people/gregkh/gregkh-2.6/gregkh-01-driver/driver-link-device-and-class.patch Last time I tried to do something like this, it fell over with multi-function serial ports. Look at this example: # ls -l /sys/class/tty/ttyS*/device | cut -c40- /sys/class/tty/ttyS0/device -> ../../../devices/parisc/0/0:0/pci0000:00/0000:00:04.0 /sys/class/tty/ttyS1/device -> ../../../devices/parisc/0/0:0/pci0000:00/0000:00:04.0 /sys/class/tty/ttyS2/device -> ../../../devices/parisc/0/0:0/pci0000:00/0000:00:04.0 /sys/class/tty/ttyS3/device -> ../../../devices/parisc/0/0:0/pci0000:00/0000:00:05.0 /sys/class/tty/ttyS4/device -> ../../../devices/parisc/0/0:0/pci0000:00/0000:00:05.0 Adding the reverse links gets you three links in the 0000:00:04.0 directory all called 'tty' (or 'class:tty', whatever), each pointing to a different place. This doesn't happen for scsi devices as the class is attached to the scsi_dev, not the pci_dev. I think the tty subsystem needs to be modified to add tty_devs as subdevices of the pci_dev. -- "Next the statesmen will invent cheap lies, putting the blame upon the nation that is attacked, and every man will be glad of those conscience-soothing falsities, and will diligently study them, and refuse to examine any refutations of them; and thus he will by and by convince himself that the war is just, and will thank God for the better sleep he enjoys after this process of grotesque self-deception." -- Mark Twain - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html