Date: Fri, 20 Aug 2010 20:06:48 +0200 From: Juergen Lock <nox@jelal.kn-bremen.de> To: Joe Marcus Clarke <marcus@freebsd.org> Cc: me@janh.de, kde@freebsd.org, hselasky@freebsd.org, Juergen Lock <nox@jelal.kn-bremen.de>, freebsd-multimedia@freebsd.org, gnome@freebsd.org Subject: Re: kaffeine-1.0 and webcamd based DVB-T? Message-ID: <20100820180648.GA90683@triton8.kn-bremen.de> In-Reply-To: <4C6DC8BC.9080100@freebsd.org> References: <4C66C4BC.4040504@janh.de> <4C6704A6.3050407@FreeBSD.org> <201008191617.o7JGHq9c003392@triton8.kn-bremen.de> <4C6DC8BC.9080100@freebsd.org>
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On Thu, Aug 19, 2010 at 08:13:48PM -0400, Joe Marcus Clarke wrote:
> On 8/19/10 12:17 PM, Juergen Lock wrote:
> > In article <4C6704A6.3050407@FreeBSD.org> you write:
> >> On 08/14/2010 18:30, Jan Henrik Sylvester wrote:
> >>> KDE3-Kaffeine was working with my webcamd based DVB-T stick,
> >>> KDE4-Kaffeine does not.
> >>>
> >>> Now that multimedia/kaffeine is the KDE4 version and the KDE3 version
> >>> gone, is there a way to teach Kaffeine about the DVB-T stick? ("Channel
> >>> Scan" does not show any "Source".)
> >>>
> >>> I remember there was a thread about this, but I currently cannot find it.
> >>
> >> Unfortunately i don't have a supported DVB stick, so i can't test anything.
> >>
> >> kaffeine uses the v4l-compat headers so in theory it should work like in
> >> Linux...
> >>
> >> Does your stick work with other applications like mplayer or vlc?
> >
> > I now know what's wrong: Unlike the old kaffeine which looked for
> > dvb devices itself, the KDE4 version relies on x11/kdelibs4 to
> > find them (<Solid/DvbInterface>, src/dvb/dvbdevice_linux.cpp
> > in kaffeine sources), which in turn relies on sysutils/hal
> > (solid/solid/backends/hal/haldvbinterface.cpp in kdelibs), and
> > at least hal doesn't know about dvb devices on FreeBSD yet, they
> > are only handled in hald/linux/device.c in hal sources. I've
> > Cc'd the hal and kdelibs port maintainers in case they want to
> > look at this...
>
> Hal does support v4l (and thus webcamd) right now. I added that for
> GNOME 2.30. I didn't do any dvb support. I may need some examples of
> dmesg and sysctl to make this happen.
(Note: I also found a bug in the current hal webcamd v4l handling,
more about that below. [1] )
The devices don't show up in sysctl since they are handled by webcamd
too, dmesg here only says:
ugen5.2: <Pinnacle> at usbus5
ugen5.3: <Afatech> at usbus5
(the first one is dvb-s2, the second one dual dvb-t.)
lshal on FreeBSD has this about them:
udi = '/org/freedesktop/Hal/devices/usb_device_2304_21f_noserial'
info.bus = 'usb_device' (string)
info.parent = '/org/freedesktop/Hal/devices/usb_device_0_0_noserial_4' (string)
info.product = 'PCTV452e' (string)
info.subsystem = 'usb_device' (string)
info.udi = '/org/freedesktop/Hal/devices/usb_device_2304_21f_noserial' (string)
info.vendor = 'Pinnacle' (string)
usb_device.bus_number = 5 (0x5) (int)
usb_device.can_wake_up = true (bool)
usb_device.configuration = '' (string)
usb_device.configuration_value = 1 (0x1) (int)
usb_device.device_class = 0 (0x0) (int)
usb_device.device_protocol = 0 (0x0) (int)
usb_device.device_revision_bcd = 512 (0x200) (int)
usb_device.device_subclass = 0 (0x0) (int)
usb_device.is_self_powered = false (bool)
usb_device.level_number = 1 (0x1) (int)
usb_device.max_power = 10 (0xa) (int)
usb_device.num_configurations = 1 (0x1) (int)
usb_device.num_interfaces = 1 (0x1) (int)
usb_device.num_ports = 0 (0x0) (int)
usb_device.port_number = 2 (0x2) (int)
usb_device.product = 'PCTV452e' (string)
usb_device.product_id = 543 (0x21f) (int)
usb_device.serial = '' (string)
usb_device.speed = 480.0 (480) (double)
usb_device.speed_bcd = 294912 (0x48000) (int)
usb_device.vendor = 'Pinnacle' (string)
usb_device.vendor_id = 8964 (0x2304) (int)
usb_device.version = 2.0 (2) (double)
udi = '/org/freedesktop/Hal/devices/usb_device_2304_21f_noserial_if0'
info.bus = 'usb' (string)
info.parent = '/org/freedesktop/Hal/devices/usb_device_2304_21f_noserial' (string)
info.product = 'PCTV452e' (string)
info.subsystem = 'usb' (string)
info.udi = '/org/freedesktop/Hal/devices/usb_device_2304_21f_noserial_if0' (string)
info.vendor = 'Pinnacle' (string)
usb.bus_number = 5 (0x5) (int)
usb.can_wake_up = true (bool)
usb.configuration = '' (string)
usb.configuration_value = 1 (0x1) (int)
usb.device_class = 0 (0x0) (int)
usb.device_protocol = 0 (0x0) (int)
usb.device_revision_bcd = 512 (0x200) (int)
usb.device_subclass = 0 (0x0) (int)
usb.interface.class = 255 (0xff) (int)
usb.interface.description = '' (string)
usb.interface.number = 0 (0x0) (int)
usb.interface.protocol = 0 (0x0) (int)
usb.interface.subclass = 0 (0x0) (int)
usb.is_self_powered = false (bool)
usb.level_number = 1 (0x1) (int)
usb.max_power = 10 (0xa) (int)
usb.num_configurations = 1 (0x1) (int)
usb.num_interfaces = 1 (0x1) (int)
usb.num_ports = 0 (0x0) (int)
usb.port_number = 2 (0x2) (int)
usb.product = 'PCTV452e' (string)
usb.product_id = 543 (0x21f) (int)
usb.serial = '' (string)
usb.speed = 480.0 (480) (double)
usb.speed_bcd = 294912 (0x48000) (int)
usb.vendor = 'Pinnacle' (string)
usb.vendor_id = 8964 (0x2304) (int)
usb.version = 2.0 (2) (double)
and:
udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial'
info.bus = 'usb_device' (string)
info.parent = '/org/freedesktop/Hal/devices/usb_device_0_0_noserial_4' (string)
info.product = 'DVB-T 2' (string)
info.subsystem = 'usb_device' (string)
info.udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial' (string)
info.vendor = 'Afatech' (string)
usb_device.bus_number = 5 (0x5) (int)
usb_device.can_wake_up = false (bool)
usb_device.configuration = '' (string)
usb_device.configuration_value = 1 (0x1) (int)
usb_device.device_class = 0 (0x0) (int)
usb_device.device_protocol = 0 (0x0) (int)
usb_device.device_revision_bcd = 512 (0x200) (int)
usb_device.device_subclass = 0 (0x0) (int)
usb_device.is_self_powered = false (bool)
usb_device.level_number = 2 (0x2) (int)
usb_device.max_power = 500 (0x1f4) (int)
usb_device.num_configurations = 1 (0x1) (int)
usb_device.num_interfaces = 1 (0x1) (int)
usb_device.num_ports = 0 (0x0) (int)
usb_device.port_number = 3 (0x3) (int)
usb_device.product = 'DVB-T 2' (string)
usb_device.product_id = 34817 (0x8801) (int)
usb_device.serial = '' (string)
usb_device.speed = 480.0 (480) (double)
usb_device.speed_bcd = 294912 (0x48000) (int)
usb_device.vendor = 'Afatech' (string)
usb_device.vendor_id = 5218 (0x1462) (int)
usb_device.version = 2.0 (2) (double)
And for comparison, if I plug the dual dvb-t one into a Linux box
lshal there has the following: (of which only the /dev/dvb/adapterX/net0
and the ir receiver are not supported by webcamd yet; the ir reciver
works but currently no device node gets created and it just outputs
to webcamd's stdout, and the .../net0 are afaik not used with regular
video/audio broadcasts.)
udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial'
info.linux.driver = 'usb' (string)
info.parent = '/org/freedesktop/Hal/devices/usb_device_1d6b_2_0000_00_1d_7' (string)
info.product = 'DVB-T 2' (string)
info.subsystem = 'usb_device' (string)
info.udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial' (string)
info.vendor = 'Micro Star International' (string)
linux.device_file = '/dev/bus/usb/003/002' (string)
linux.hotplug_type = 2 (0x2) (int)
linux.subsystem = 'usb' (string)
linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1d.7/usb3/3-2' (string)
usb_device.bus_number = 3 (0x3) (int)
usb_device.can_wake_up = false (bool)
usb_device.configuration_value = 1 (0x1) (int)
usb_device.device_class = 0 (0x0) (int)
usb_device.device_protocol = 0 (0x0) (int)
usb_device.device_revision_bcd = 512 (0x200) (int)
usb_device.device_subclass = 0 (0x0) (int)
usb_device.is_self_powered = false (bool)
usb_device.linux.device_number = 2 (0x2) (int)
usb_device.linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1d.7/usb3/3-2' (string)
usb_device.max_power = 500 (0x1f4) (int)
usb_device.num_configurations = 1 (0x1) (int)
usb_device.num_interfaces = 1 (0x1) (int)
usb_device.num_ports = 0 (0x0) (int)
usb_device.product = 'DVB-T 2' (string)
usb_device.product_id = 34817 (0x8801) (int)
usb_device.speed = 480.0 (480) (double)
usb_device.vendor = 'Micro Star International' (string)
usb_device.vendor_id = 5218 (0x1462) (int)
usb_device.version = 2.0 (2) (double)
udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_usbraw'
info.capabilities = {'usbraw'} (string list)
info.category = 'usbraw' (string)
info.parent = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial' (string)
info.product = 'USB Raw Device Access' (string)
info.subsystem = 'usb_device' (string)
info.udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_usbraw' (string)
linux.device_file = '/dev/usbdev3.2' (string)
linux.hotplug_type = 2 (0x2) (int)
linux.subsystem = 'usb_device' (string)
linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1d.7/usb3/3-2/usb_device/usbdev3.2' (string)
usbraw.device = '/dev/usbdev3.2' (string)
udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_logicaldev_input'
info.addons.singleton = {'hald-addon-input'} (string list)
info.capabilities = {'input', 'input.keys', 'button'} (string list)
info.category = 'input' (string)
info.parent = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial' (string)
info.product = 'IR-receiver inside an USB DVB receiver' (string)
info.subsystem = 'input' (string)
info.udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_logicaldev_input' (string)
input.device = '/dev/input/event8' (string)
input.originating_device = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial' (string)
input.product = 'IR-receiver inside an USB DVB receiver' (string)
linux.device_file = '/dev/input/event8' (string)
linux.hotplug_type = 2 (0x2) (int)
linux.subsystem = 'input' (string)
linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1d.7/usb3/3-2/input/input8/event8' (string)
udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_dvb_6'
dvb.device = '/dev/dvb/adapter1/net0' (string)
info.capabilities = {'dvb'} (string list)
info.category = 'dvb' (string)
info.parent = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial' (string)
info.product = 'DVB Device' (string)
info.subsystem = 'dvb' (string)
info.udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_dvb_6' (string)
linux.device_file = '/dev/dvb/adapter1/net0' (string)
linux.hotplug_type = 2 (0x2) (int)
linux.subsystem = 'dvb' (string)
linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1d.7/usb3/3-2/dvb/dvb1.net0' (string)
udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_dvb_5'
dvb.device = '/dev/dvb/adapter1/frontend0' (string)
info.capabilities = {'dvb'} (string list)
info.category = 'dvb' (string)
info.parent = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial' (string)
info.product = 'DVB Device' (string)
info.subsystem = 'dvb' (string)
info.udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_dvb_5' (string)
linux.device_file = '/dev/dvb/adapter1/frontend0' (string)
linux.hotplug_type = 2 (0x2) (int)
linux.subsystem = 'dvb' (string)
linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1d.7/usb3/3-2/dvb/dvb1.frontend0' (string)
udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_dvb_4'
dvb.device = '/dev/dvb/adapter1/dvr0' (string)
info.capabilities = {'dvb'} (string list)
info.category = 'dvb' (string)
info.parent = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial' (string)
info.product = 'DVB Device' (string)
info.subsystem = 'dvb' (string)
info.udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_dvb_4' (string)
linux.device_file = '/dev/dvb/adapter1/dvr0' (string)
linux.hotplug_type = 2 (0x2) (int)
linux.subsystem = 'dvb' (string)
linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1d.7/usb3/3-2/dvb/dvb1.dvr0' (string)
udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_dvb_3'
dvb.device = '/dev/dvb/adapter1/demux0' (string)
info.capabilities = {'dvb'} (string list)
info.category = 'dvb' (string)
info.parent = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial' (string)
info.product = 'DVB Device' (string)
info.subsystem = 'dvb' (string)
info.udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_dvb_3' (string)
linux.device_file = '/dev/dvb/adapter1/demux0' (string)
linux.hotplug_type = 2 (0x2) (int)
linux.subsystem = 'dvb' (string)
linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1d.7/usb3/3-2/dvb/dvb1.demux0' (string)
udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_dvb_2'
dvb.device = '/dev/dvb/adapter0/net0' (string)
info.capabilities = {'dvb'} (string list)
info.category = 'dvb' (string)
info.parent = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial' (string)
info.product = 'DVB Device' (string)
info.subsystem = 'dvb' (string)
info.udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_dvb_2' (string)
linux.device_file = '/dev/dvb/adapter0/net0' (string)
linux.hotplug_type = 2 (0x2) (int)
linux.subsystem = 'dvb' (string)
linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1d.7/usb3/3-2/dvb/dvb0.net0' (string)
udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_dvb_1'
dvb.device = '/dev/dvb/adapter0/frontend0' (string)
info.capabilities = {'dvb'} (string list)
info.category = 'dvb' (string)
info.parent = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial' (string)
info.product = 'DVB Device' (string)
info.subsystem = 'dvb' (string)
info.udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_dvb_1' (string)
linux.device_file = '/dev/dvb/adapter0/frontend0' (string)
linux.hotplug_type = 2 (0x2) (int)
linux.subsystem = 'dvb' (string)
linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1d.7/usb3/3-2/dvb/dvb0.frontend0' (string)
udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_dvb_0'
dvb.device = '/dev/dvb/adapter0/dvr0' (string)
info.capabilities = {'dvb'} (string list)
info.category = 'dvb' (string)
info.parent = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial' (string)
info.product = 'DVB Device' (string)
info.subsystem = 'dvb' (string)
info.udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_dvb_0' (string)
linux.device_file = '/dev/dvb/adapter0/dvr0' (string)
linux.hotplug_type = 2 (0x2) (int)
linux.subsystem = 'dvb' (string)
linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1d.7/usb3/3-2/dvb/dvb0.dvr0' (string)
udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_dvb'
dvb.device = '/dev/dvb/adapter0/demux0' (string)
info.capabilities = {'dvb'} (string list)
info.category = 'dvb' (string)
info.parent = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial' (string)
info.product = 'DVB Device' (string)
info.subsystem = 'dvb' (string)
info.udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_dvb' (string)
linux.device_file = '/dev/dvb/adapter0/demux0' (string)
linux.hotplug_type = 2 (0x2) (int)
linux.subsystem = 'dvb' (string)
linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1d.7/usb3/3-2/dvb/dvb0.demux0' (string)
udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_if0'
info.linux.driver = 'dvb_usb_af9015' (string)
info.parent = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial' (string)
info.product = 'USB Vendor Specific Interface' (string)
info.subsystem = 'usb' (string)
info.udi = '/org/freedesktop/Hal/devices/usb_device_1462_8801_noserial_if0' (string)
linux.hotplug_type = 2 (0x2) (int)
linux.subsystem = 'usb' (string)
linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1d.7/usb3/3-2/3-2:1.0' (string)
usb.bus_number = 3 (0x3) (int)
usb.can_wake_up = false (bool)
usb.configuration_value = 1 (0x1) (int)
usb.device_class = 0 (0x0) (int)
usb.device_protocol = 0 (0x0) (int)
usb.device_revision_bcd = 512 (0x200) (int)
usb.device_subclass = 0 (0x0) (int)
usb.interface.class = 255 (0xff) (int)
usb.interface.number = 0 (0x0) (int)
usb.interface.protocol = 0 (0x0) (int)
usb.interface.subclass = 0 (0x0) (int)
usb.is_self_powered = false (bool)
usb.linux.device_number = 2 (0x2) (int)
usb.linux.sysfs_path = '/sys/devices/pci0000:00/0000:00:1d.7/usb3/3-2/3-2:1.0' (string)
usb.max_power = 500 (0x1f4) (int)
usb.num_configurations = 1 (0x1) (int)
usb.num_interfaces = 1 (0x1) (int)
usb.num_ports = 0 (0x0) (int)
usb.product = 'USB Vendor Specific Interface' (string)
usb.product_id = 34817 (0x8801) (int)
usb.speed = 480.0 (480) (double)
usb.vendor = 'Micro Star International' (string)
usb.vendor_id = 5218 (0x1462) (int)
usb.version = 2.0 (2) (double)
[1] And now the bug and some more notes: I meanwhile found the hal
port's files/patch-hald_freebsd_probing_probe-video4linux.c and
briefly looked at it to see if I could easily extend it for dvb
myself, but found two problems:
a) I'm not sure if we also need code like dvb_add() and friends
from hald/linux/device.c and I don't know how that gets invoked,
i.e. how hal knows that devices are dvb and need to be handled by
dvb_add() (does Linux' udev tell it that?), and
b) (this is the bug) hald's current handling of multiple devices
in hfp_v4l_get_unit() is broken (the last number in webcamd's pidfile
name is _not_ the device index, it's always 0 or at least it is
here), and also it would have to be extended/adjusted for webcamd
svn which now supports dvb devices with multiple tuners, like
the dual dvb-t one I have here.
Because of the latter webcamd now allocates each device's first tuner
index in increments of 8 (I think that's the max number of tuners on
a single device the Linux code will handle), and so if I use webcamd
with my two devices for a total of three tuners I get e.g.
/dev/dvb/adapter0/*, /dev/dvb/adapter8/*, and /dev/dvb/adapter9/*
(and I have to symlink adapter8 to adapter1 and adapter9 to adapter2
if I want vdr to find all of them, but of course that shouldn't
affect hal and kdelibs/kaffeine.)
I have Cc'd hps, maybe he has an idea how to get the device index
out of a running webcamd for hal to use... (maybe webcamd should
also do a setproctitle()?)
Oh and also I wondered whether there might be races in case of
hotplugging a device, i.e. if probe-video4linux.c gets run right
at the moment after plugging a device in webcamd and the Linux code it
runs might not yet have finished initializing and device nodes might
not (all?) have been created yet?
Ok, and that's all I have for now, :)
Juergen
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