Systemd/TODO


  o drop support for node names in name stack, support only symlinks
     With well defined and kernel-supplied node names, we no longer need
     to support a possible stack of conflicting symlinks and node names.
     From there on, only symlinks with identical names can be claimed
     by multiple devices. It will simplify the logic a lot and shrink
     /dev/.udev/names/ significantly. Also exclude "*/MAJ:MIN" link names
     from the name stack, they can not conflict.
  o remove most NAME= rules (they are provided by the 2.6.31 kernel)
  o get rid of braindead "scan all devices to find myself" libusb interface
      if it can not be fixed, drop libusb entirely
  o convert firmware.sh to C

  o symlink names to udevadm will no longer be resolved to old command names
  o "udevadm control" commands will only accept the --<command> syntax
  o drop all support for the DEPRECATED sysfs layout
  o add warning for BUS, SYSFS, ID
rules: do not install usb-id/pci-id rules when --disable-extras is used 2009-06-17 18:18:22 +02:00
change database file names With very deeply nested devices, We can not use a single file name to carry an entire DEVPATH. Use <subsystem>:<sysname> as the database filename, which should also simplify the handling of devices moving around, as these values will not change but still be unique. For the name stack we use the <maj>:<min> now as the filename. > On Tue, Aug 18, 2009 at 09:59:56AM -0400, Ric Wheeler wrote: > The first is that udev grumbles during boot about "file name too long" > like the following: > > Aug 17 06:49:58 megadeth udevd-event[20447]: unable to create db file > '/dev/.udev/db/\x2fdevices\x2fpci0000:00\x2f0000:00:04.0\x2f0000:17:00.0\x2f0000:18:0a.0\x2f0000:1f:00.0\x2fhost11\x2fport-11:0\x2fexpander-11:0\x2fport-11:0:0\x2fexpander-11:1\x2fport-11:1:0\x2fexpander-11:2\x2fport-11:2:17\x2fexpander-11:3\x2fport-11:3:1\x2fend_device-11:3:1\x2fbsg\x2fend_device-11:3:1': > File name too long 2009-08-19 20:49:49 +02:00			`o drop support for node names in name stack, support only symlinks`
			`With well defined and kernel-supplied node names, we no longer need`
			`to support a possible stack of conflicting symlinks and node names.`
			`From there on, only symlinks with identical names can be claimed`
			`by multiple devices. It will simplify the logic a lot and shrink`
			`/dev/.udev/names/ significantly. Also exclude "*/MAJ:MIN" link names`
			`from the name stack, they can not conflict.`
			`o remove most NAME= rules (they are provided by the 2.6.31 kernel)`
hid2hci: rewrite (and break) rules and device handling We must never access random devices in /dev which do not belong to the event we are handling. Hard-coding /dev/hidrawX, and looping over all devices is absolutely not acceptable --> hook into hidraw events. We can not relay on (rather random) properties merged into the parent device by earlier rules --> use libudev to find the sibling device with a matching interface. Libusb does not fit into udev's use case. We never want want to scan and open() all usb devices in the system, just to find the device we are already handling the event for --> put all the stupid scanning into a single function and prepare for a fixed libusb or drop it later. 2009-07-24 18:06:22 +02:00			`o get rid of braindead "scan all devices to find myself" libusb interface`
			`if it can not be fixed, drop libusb entirely`
update TODO 2009-06-16 02:03:26 +02:00			`o convert firmware.sh to C`
rules: remove scsi ch module loading rule 2009-06-10 00:17:35 +02:00
udevadm: print warning to stderr if udevadm is called by symlink 2008-09-03 21:59:21 +02:00			`o symlink names to udevadm will no longer be resolved to old command names`
rules: remove scsi ch module loading rule 2009-06-10 00:17:35 +02:00			`o "udevadm control" commands will only accept the --<command> syntax`
			`o drop all support for the DEPRECATED sysfs layout`
update TODO 2009-05-20 19:43:26 +02:00			`o add warning for BUS, SYSFS, ID`