On Wed, Dec 3, 2008 at 10:27, Kay Sievers <kay.sievers@xxxxxxxx> wrote: > On Wed, Dec 3, 2008 at 07:45, Greg KH <greg@xxxxxxxxx> wrote: >> On Sun, Nov 30, 2008 at 06:21:11AM +0100, Kay Sievers wrote: >>> On Sat, Nov 29, 2008 at 18:37, Greg KH <greg@xxxxxxxxx> wrote: >>> > On Sat, Nov 29, 2008 at 10:00:59AM +0200, Jar wrote: >>> >> Greg KH wrote: >>> >>> HAL contains a list of these modems and a mapping of each port to what >>> >>> it does based on the specific device. >>> >>> Try using that instead of udev specific rules for your accessed to the >>> >>> modem, it will work much better. >>> >> >>> >> Thanks for your reply! Does HAL require that I have desktop installed, this >>> >> is my home "server" machine without X? Do you have any starting point or >>> >> where to learn more how to do this with HAL. >>> > >>> > I do not think HAL requires X. Try asking on your distro mailing list >>> > for how they have incorporated HAL into the releases you are using. >>> >>> It might get pretty complicated to use D-Bus/HAL for simple setups, >>> and rather static configurations like this. NetworkManager handles >>> that, and we will even get modem-probing soon, but in cases like this >>> it might be easier to have a simple - not very flexible - but working >>> solution. >>> >>> Maybe we can have an "index" sysfs file at the serial device, which >>> carries the instance number, per usb device? This would allow us to >>> create persistent links which do not depend on the kernel device >>> enumeration across multiple device. >>> >>> We did the same for v4l devices recently: >>> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=539a7555b31e65e66fb84c881d07d2bf18c974d0 >>> >>> Greg, what do you think? >> >> Don't we already have something like this today (the "ports" on an >> individual usb-serial device)? Or do we just need to export that a bit >> better? > > Yeah, maybe that works already. I don't have such a device. Ok, I found one. You mean "port_number", right? But unfortunately it looks pretty useless in this case. :) $ grep . /sys/bus/usb-serial/devices/*/port_number /sys/bus/usb-serial/devices/ttyUSB1/port_number:0 /sys/bus/usb-serial/devices/ttyUSB2/port_number:0 They would only be not "0" if the serial lines would be on the same usb interface? We would need a per-device enumeration, but that's nothing the usb-serial stuff knows/cares about if we have different usb interfaces, right? Thanks, Kay -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
