Hi, I just tested a PCTV 290e device using the latest media_build drivers in MythTV as a DVB-C device, and ran into some problems. The adapter is recognized by the em28xx-dvb driver [1] and dmesg output seems to be correct [2]. I can successfully scan for channels using the scan utility in dvb-apps but when I try to scan for channels in mythtv I get the following errors logged by mythtv-setup: 2011-06-12 00:57:20.971556 PIDInfo(/dev/dvb/adapter0/ frontend1): Failed to open demux device /dev/dvb/adapter0/demux1 for filter on pid 0x0 The demux1 does not exist, I only have the following nodes under /dev/dvb/adapter0: demux0 dvr0 frontend0 frontend1 net0 When searching the linx-media I came across this thread: http://www.mail-archive.com/linux-media@xxxxxxxxxxxxxxx/msg31839.html Is there any way to circumvent with the current driver that there is no corresponding demux1 for frontend1? Or can the DVB-T/T2 part be disabled somehow so that there is only one DVB-C frontend registered which corresponds to the demux0? Best regards, Rune [1] modinfo: modinfo em28xx-dvb filename: /lib/modules/2.6.38-8-generic/kernel/drivers/media/video/em28xx/em28xx-dvb.ko license: GPL author: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxx> description: driver for em28xx based DVB cards srcversion: 663F353AB97767017FDEC27 depends: em28xx,dvb-core,cxd2820r vermagic: 2.6.38-8-generic SMP mod_unload modversions 686 parm: debug:enable debug messages [dvb] (int) parm: adapter_nr:DVB adapter numbers (array of short) [2] dmesg: [ 54.724067] usb 1-3: new high speed USB device using ehci_hcd and address 4 [ 54.941327] WARNING: You are using an experimental version of the media stack. [ 54.941332] As the driver is backported to an older kernel, it doesn't offer [ 54.941335] enough quality for its usage in production. [ 54.941338] Use it with care. [ 54.941339] Latest git patches (needed if you report a bug to linux-media@xxxxxxxxxxxxxxx): [ 54.941343] 75125b9d44456e0cf2d1fbb72ae33c 13415299d1 [media] DocBook: Don't be noisy at make cleanmediadocs [ 54.941346] 0fba2f7ff0c4d9f48a5c334826a22db32f816a76 Revert [media] dvb/audio.h: Remove definition for AUDIO_GET_PTS [ 54.941350] 4f75ad768da3c5952d1e7080045a5b5ce7b0d85d [media] DocBook/video.xml: Document the remaining data structures [ 54.961881] IR NEC protocol handler initialized [ 54.987012] IR RC5(x) protocol handler initialized [ 55.008281] IR RC6 protocol handler initialized [ 55.032239] IR JVC protocol handler initialized [ 55.052312] IR Sony protocol handler initialized [ 55.092892] em28xx: New device PCTV Systems PCTV 290e @ 480 Mbps (2013:024f, interface 0, class 0) [ 55.093169] lirc_dev: IR Remote Control driver registered, major 250 [ 55.100171] em28xx #0: chip ID is em28174 [ 55.110254] IR LIRC bridge handler initialized [ 55.419763] em28xx #0: Identified as PCTV nanoStick T2 290e (card=78) [ 55.464076] Registered IR keymap rc-pinnacle-pctv-hd [ 55.472069] input: em28xx IR (em28xx #0) as /devices/pci0000:00/0000:00:1d.7/usb1/1-3/rc/rc0/input11 [ 55.472505] rc0: em28xx IR (em28xx #0) as /devices/pci0000:00/0000:00:1d.7/usb1/1-3/rc/rc0 [ 55.483777] em28xx #0: v4l2 driver version 0.1.2 [ 55.493073] em28xx #0: V4L2 video device registered as video1 [ 55.494836] usbcore: registered new interface driver em28xx [ 55.494844] em28xx driver loaded [ 55.552425] WARNING: You are using an experimental version of the media stack. [ 55.552430] As the driver is backported to an older kernel, it doesn't offer [ 55.552434] enough quality for its usage in production. [ 55.552436] Use it with care. [ 55.552438] Latest git patches (needed if you report a bug to linux-media@xxxxxxxxxxxxxxx): [ 55.552441] 75125b9d44456e0cf2d1fbb72ae33c13415299d1 [media] DocBook: Don't be noisy at make cleanmediadocs [ 55.552445] 0fba2f7ff0c4d9f48a5c334826a22db32f816a76 Revert [media] dvb/audio.h: Remove definition for AUDIO_GET_PTS [ 55.552449] 4f75ad768da3c5952d1e7080045a5b5ce7b0d85d [media] DocBook/video.xml: Document the remaining data structures [ 55.610886] tda18271 15-0060: creating new instance [ 55.613267] TDA18271HD/C2 detected @ 15-0060 [ 55.845831] tda18271 15-0060: attaching existing instance [ 55.845842] DVB: registering new adapter (em28xx #0) [ 55.845850] DVB: registering adapter 0 frontend 0 (Sony CXD2820R (DVB-T/T2))... [ 55.846111] DVB: registering adapter 0 frontend 1 (Sony CXD2820R (DVB-C))... [ 55.846891] em28xx #0: Successfully loaded em28xx-dvb [ 55.846899] Em28xx: Initialized (Em28xx dvb Extension) extension -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html