Inconsistent storage.bus and storage.originating_device info
dcbw at redhat.com
Sun Sep 20 20:43:47 PDT 2009
On Sun, 2009-09-20 at 08:05 -0700, Dan Williams wrote:
> On Sun, 2009-09-20 at 15:51 +0100, Baz Walter wrote:
> > hello
> > i'm writing a small application for portable audio players which needs
> > to get the vendor_id and some properties from the portable_audio_player
> > namespace. at the moment, i use dbus to search for all devices with
> > storage.bus == usb, and then use the storage.originating_device to check
> > the vendor_id.
> You want '.subsystem', not .bus. .bus has been deprecated for quite a
> long time.
Sorry, I lied... I was thinking "info.subsystem" which should be used
instead of "info.bus"... storage appears to still use ".bus".
> What HAL version are you using?
> > unfortunately, sometimes this works and sometimes it doesn't. what i'm
> > finding is that (apparently ramdomly) the bus will be shown as "pci",
> > the originating_device as "/org/freedesktop/Hal/devices/computer", and
> > all the portable_audio_player properties will be missing. other than
> > showing the wrong information, though, the device works totally
> > correctly (it's a Samsung YP-P3).
> > looking in gnome-device-manager i see that the SCSI Host Adapter for the
> > relevant Mass Storage Drive appears as a child of the USB Device
> > rather than the USB Mass Storage Interface. The correct UMS interface is
> > there - it just isn't linked to the correct SCSI Host Adapter.
> > so is this a problem with hal, or with hal-info?
> > is there a reliable way to get the relevant UMS Interface that doesn't
> > depend on querying storage.originating_device?
> > some info about my setup:
> > distro: mandriva 2009.1
> > hal : 0.5.12-0.rc1.20090403.1mdv2009.1
> > hal-info : 0.0-5.20090414.1mdv2009.1
> > udev : 140-3.2mnb2
> > hotplug : 2.4.4-2mdv2009.1
> > kernel : 22.214.171.124-2mnb2
> > policykit : 0.9-5mdv2009.1
> > consolekit : 0.3.0-5mdv2009.1
> > TIA
> > baz walter
> > _______________________________________________
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> > hal at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/hal
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