Date: Sat, 24 Jul 2010 17:44:59 +0200 From: Juergen Lock <nox@jelal.kn-bremen.de> To: freebsd-multimedia@FreeBSD.org Subject: usb tuners that don't immediately work with webcamd Message-ID: <20100724154459.GA5755@triton8.kn-bremen.de>
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Since I've now done this for the third time... If your usb tuner doesn't immediately work with webcamd (no device node gets created or /dev/dvb/adapterX/frontend0 is missing in case of dvb or the device is just not tuning/receiving), there may only be some Linux driver(s) not enabled i.e. a simple webcamd Makefile patch like this may be all that's needed: Index: ulinux/Makefile =================================================================== --- ulinux/Makefile (revision 1592) +++ ulinux/Makefile (working copy) @@ -462,6 +462,10 @@ SRCS+= flexcop-usb.c SRCS+= flexcop.c +SRCS+= dib7000p.c +CFLAGS+= -DCONFIG_DVB_DIB7000P +SRCS+= mt2060.c +CFLAGS+= -DCONFIG_MEDIA_TUNER_MT2060 # # Various webcams # How to find out which driver is missing? webcamd svn now has a HAVE_DEBUG knob, i.e. in hps' svn instructions here: http://www.selasky.org/hans_petter/video4bsd/ replace make -j3 all with: make HAVE_DEBUG=YES -j3 all then the resulting webcamd will show Linux driver's debug output. If in those you see messages like: dib7000pc_detection: driver disabled by Kconfig you may be lucky: grep for that symbol - i.e. dib7000pc_detection in this case - in ulinux/v4l-dvb/linux/drivers/media/ and look which .c source file defines it (there should be a EXPORT_SYMBOL() around it, in this case it was in ulinux/v4l-dvb/linux/drivers/media/dvb/frontends/dib7000p.c ) and which CONFIG_xxx definition is needed - in this case there was an #if defined(CONFIG_DVB_DIB7000P) ... in ulinux/v4l-dvb/linux/drivers/media/dvb/frontends/dib7000p.h . Add those to ulinux/Makefile as in the patch above, do rm ulinux/*.o for good measure and then do another make HAVE_DEBUG=YES -j3 all and repeat. (In this case it turned out that also the mt2060 tuner driver was missing.) Good luck! Juergen PS: This particular device was an `EyeTV for DTT' tuner that comes up as 'Hauppauge Nova-T Stick' (hi callum! :), but apparently with this specific model there are still (I guess) Linux driver issues, it only got poor reception while on the same antenna on osx and using the `EyeTV' software that came with it reception was alright; even enabling a module_param called `buggy_sfn_workaround' that came up on a web search (and currently has to be hardcoded with webcamd) didn't really help there: --- ulinux/v4l-dvb/linux/drivers/media/dvb/frontends/dib7000p.c +++ ulinux/v4l-dvb/linux/drivers/media/dvb/frontends/dib7000p.c.orig @@ -24,7 +24,7 @@ static int debug; module_param(debug, int, 0644); MODULE_PARM_DESC(debug, "turn on debugging (default: 0)"); -static int buggy_sfn_workaround; +static int buggy_sfn_workaround = 1; module_param(buggy_sfn_workaround, int, 0644); MODULE_PARM_DESC(buggy_sfn_workaround, "Enable work-around for buggy SFNs (default: 0)");
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