Simon Santoro wrote: > On Friday 27 July 2007 18:09:01 Fabian Förg wrote: > >> Fabian Förg wrote: >> >>> Hello, >>> >>> in newer kernel releases multiple read accesses on the Hauppauge WinTV >>> Nova-S-Plus are impossible. >>> Thus, the command line femon is for example unable to open the DVB >>> device when VDR is running: >>> >>> $ fuser -v /dev/dvb/adapter0/frontend0 >>> >>> USER PID ACCESS COMMAND >>> /dev/dvb/adapter0/frontend0: >>> myuser 5073 F.... vdr >>> >>> $ femon >>> using '/dev/dvb/adapter0/frontend0' >>> opening frontend failed: Device or resource busy >>> >>> I encounterd this issue with kernel 2.6.22.1 and the current Ubuntu >>> feisty kernel (2.6.20.x). >>> Older kernels allowed multiple accesses. However, I can't test which >>> ones, because I replaced >>> my system board some time ago, and older kernels don't contain the >>> necessary drivers for the board. >>> >>> Greets, >>> Fabian >>> >> Today I tested it with the newest v4l-sources - also no multiple read >> accesses possible. >> Any suggestions? >> > > I don't know if this ever worked, but just to help you a bit, I tested it on > my 2.6.20 kernel, and I get the same. > > root@black:/home/mythtv# fuser /dev/dvb/adapter0/frontend0 > /dev/dvb/adapter0/frontend0: 5266 > root@black:/home/mythtv# femon > using '/dev/dvb/adapter0/frontend0' > opening frontend failed: Device or resource busy > root@black:/home/mythtv# > It worked some time ago. But a kernel switch, vdr-femon stopped working in VDR. First, I thought that this was a problem with vdr-femon. So I tried to debug it and with the help of the vdr-femon maintainer I found out that vdr-femon was unable to open the DVB device (error message: "16: Device or resource busy"). The maintainer of vdr-femon thought that this was an issue with the DVB driver of my card. Steven Toth of Hauppauge replied: "The driver does not deal with open() calls, that's the responsibility of the dvb layer, or the cx88 driver. The problem is likely in those parts." _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
