Date: Mon, 9 Sep 2013 09:04:39 +0200 From: Milan Obuch <freebsd-multimedia@dino.sk> To: Juergen Lock <nox@jelal.kn-bremen.de> Cc: freebsd-multimedia@freebsd.org Subject: Re: ITE Technologies, Inc. DVB-T TV Stick, part 2 - remote Message-ID: <20130909090439.6fe4869c@zeta.dino.sk> In-Reply-To: <201309081945.r88Jj9JW076848@triton8.kn-bremen.de> References: <20130829214227.3a6b88ab@zeta.dino.sk> <52204121.90301@bitfrost.no> <201309081945.r88Jj9JW076848@triton8.kn-bremen.de>
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On Sun, 8 Sep 2013 21:45:09 +0200 (CEST)
Juergen Lock <nox@jelal.kn-bremen.de> wrote:
> In article <20130830144218.0003446a@zeta.dino.sk> you write:
> >On Fri, 30 Aug 2013 08:52:17 +0200
> >Hans Petter Selasky <hps@bitfrost.no> wrote:
> >
> >> On 08/29/13 21:42, Milan Obuch wrote:
> >> > Hi,
> >> >
> >> > as now I can watch TV with my LV52T stick, I would like to find
> >> > how to use remote controller. I think this part of stick presents
> >> > itself as USB HID device, /dev/uhid0 gets created on attachment.
> >> >
> >> > As a blind shot I tried
> >> >
> >>
> >> Hi,
> >>
> >> Usually webcamd will grab the remote part too. Have a look at
> >> lircd.
>
> See if you get a /dev/input/eventX device node, if yes you can test
> the remote with:
>
> ir-keytable -d /dev/input/event0 -t
>
> (or whatever one you get; ir-keytable belongs to
> multimedia/v4l-utils.) If it works you can setup lirc, see it's
> pkg-message.
>
When should /dev/input/event0 get created? I see no such file on my
system. When I put LV52T stick in, /dev/ugen4.3 and /dev/uhid0 are
created (the former is a symlink for /dev/usb/4.3.0), along
with /dev/usb/4.3.[0-5] files.
When I kldload cuse4bsd, /dev/cuse gets created.
When webcamd is running, six moew devices are created,
/dev/dvb/adapter0/demux0
/dev/dvb/adapter0/dvr0
/dev/dvb/adapter0/frontend0
/dev/dvb/adapter1/demux0
/dev/dvb/adapter1/dvr0
/dev/dvb/adapter1/frontend0
Looking at comms/lirc, it seems like it expects /dev/input/event0
already existing, so maybe webcamd should create it? If that's true,
then I need webcamd somehow patched...
> >> Not sure if it supports /dev/uhidX . You could also try uhidd.
> >>
I installed sysutils/uhidd. Now I tried some dump:
uhidd -D /dev/ugen4.3
ugen4.3[1]-> Report descriptor dump:
USAGE PAGE Generic Desktop(0x1)
USAGE Keyboard(0x6)[Generic Desktop(0x1)]
COLLECTION Application(1)
USAGE PAGE Keyboard(0x7)
USAGE MINIMUM Keyboard LeftControl(224)
USAGE MAXIMUM Keyboard Right GUI(231)
LOGICAL MINIMUM 0
LOGICAL MAXIMUM 1
REPORT COUNT 8
REPORT SIZE 1
INPUT ( Data Variable Absolute ) (2)
REPORT COUNT 8
REPORT SIZE 1
INPUT ( Const Array Absolute ) (1)
USAGE PAGE LEDs(0x8)
USAGE MINIMUM Num Lock(1)
USAGE MAXIMUM Scroll Lock(3)
REPORT COUNT 3
REPORT SIZE 1
OUTPUT ( Data Variable Absolute ) (2)
REPORT COUNT 1
REPORT SIZE 5
OUTPUT ( Const Array Absolute ) (1)
USAGE PAGE Keyboard(0x7)
USAGE MINIMUM Reserved (no event indicated)(0)
USAGE MAXIMUM Unknown Usage(255)
LOGICAL MINIMUM 0
LOGICAL MAXIMUM 255
REPORT COUNT 6
REPORT SIZE 8
INPUT ( Data Array Absolute ) (0)
END COLLECTION
ugen4.3[1]-> Kernel driver is active
ugen4.3[1]-> Abort attach since kernel driver is active
ugen4.3[1]-> Please try running uhidd with option '-u' to detach the
kernel drivers
Adding -u to flags:
uhidd -D -u /dev/ugen4.3
ugen4.3[1]-> Report descriptor dump:
USAGE PAGE Generic Desktop(0x1)
USAGE Keyboard(0x6)[Generic Desktop(0x1)]
COLLECTION Application(1)
USAGE PAGE Keyboard(0x7)
USAGE MINIMUM Keyboard LeftControl(224)
USAGE MAXIMUM Keyboard Right GUI(231)
LOGICAL MINIMUM 0
LOGICAL MAXIMUM 1
REPORT COUNT 8
REPORT SIZE 1
INPUT ( Data Variable Absolute ) (2)
REPORT COUNT 8
REPORT SIZE 1
INPUT ( Const Array Absolute ) (1)
USAGE PAGE LEDs(0x8)
USAGE MINIMUM Num Lock(1)
USAGE MAXIMUM Scroll Lock(3)
REPORT COUNT 3
REPORT SIZE 1
OUTPUT ( Data Variable Absolute ) (2)
REPORT COUNT 1
REPORT SIZE 5
OUTPUT ( Const Array Absolute ) (1)
USAGE PAGE Keyboard(0x7)
USAGE MINIMUM Reserved (no event indicated)(0)
USAGE MAXIMUM Unknown Usage(255)
LOGICAL MINIMUM 0
LOGICAL MAXIMUM 255
REPORT COUNT 6
REPORT SIZE 8
INPUT ( Data Array Absolute ) (0)
END COLLECTION
ugen4.3[1]-> Kernel driver is active
ugen4.3[1]-> kernel driver detached!
This looks a bit promising, however usbhidd needs a config file to know
how keys should be handled...
> I think I played once with an uhid remote and couldn't get repeat
> to work at least with lirc... (I then patched the vdr remote plugin
> for this as vdr handles repeat differently.)
>
> >> dd if=/dev/uhidX bs=1
> >>
> >> --HPS
> >>
> >
> >I tried dd but nothing happened. Still
> >
> >0+0 records in
> >0+0 records out
> >0 bytes transferred
> >
> >when I press ^T, no matter how many times I press buttons on remote.
> >
> Well then the driver probably didn't setup the uhid part and expects
> you to use /dev/input instead... At least I see af9035_rc_query as
> well as it913x_rc_query in
>
> work/webcamd-3.11.0.2/media_tree/drivers/media/usb/dvb-usb-v2/af9035.c
>
> and
>
> work/webcamd-3.11.0.2/media_tree/drivers/media/usb/dvb-usb-v2/it913x.c
>
> respectively (not quite sure which one your tuner uses, you could
> build webcamd with the DEBUG knob enabled and look at the log when
> starting it manually to find out, and while you're at it also look
> for logs containing "ir_mode=" and "ir_type=" if its af9035.)
>
> >I think there is something missing or I do not understand it
> >completely, or both :)
> >
> ..or the Linux code doesn't support your tuner's remote or (kinda
> less likely) there's still code missing in webcamd.
>
Well, I thing I need somehow analyze USB related part of the game
unless I find the way to use uhidd... I can try to run usbdump, get some
info from usbconfig, but presently that's possibly all I can do.
Milan
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