> Hi,
>
> Hans Werner wrote:
> > Currently wscan will not autodetect frontends which which have frontend
> != 0,
> > i.e. it only detects /dev/dvb/adapterN/frontend0 where N=0-3.
> >
> > Since multiple frontends per adapter are supported in 2.6.28, this means
> the correct
> > frontend may not be found. For example with the HVR4000, DVB-T is always
> at frontend1.
> >
> > The attached patch fixes this, searching for frontend 0-3 for each
> adapter 0-3.
> >
> > Signed-off-by: Hans Werner <hwerner4@xxxxxx>
> Good idea. :)
> But while testing your patch it seems that it doesn't work as expected.
> Here some example:
>
> w_scan version 20081106
> Info: using DVB adapter auto detection.
> Found DVB-C frontend. Using adapter /dev/dvb/adapter0/frontend0
> Found DVB-C frontend. Using adapter /dev/dvb/adapter1/frontend0
> Found DVB-C frontend. Using adapter /dev/dvb/adapter2/frontend0
> Info: unable to open frontend /dev/dvb/adapter3/frontend1'
> Info: unable to open frontend /dev/dvb/adapter3/frontend2'
> Info: unable to open frontend /dev/dvb/adapter3/frontend3'
> -_-_-_-_ Getting frontend capabilities-_-_-_-_
>
> I'm using three dvb-c frontends.
> The detection doesnt stop anymore with your patch if a matching frontend
> was found, because it doesnt leave the outer loop.
> Normally this search has to stop at /dev/dvb/adapter0/frontend0.
OK I see, you want to use the first usable card found, not the last as in my patch.
> That means we have to change your patch a little. I also increased the
> number of adapters to 8, since i use more than 4.
>
> Can you please test the attached patch and give some feedback? If it
> works fine for you, i would apply to w_scan.
>
> -Winfried
>
> PS: What is actually the maximum number of adapters and frontends per
> adapter? Can anybody give some hint?
Your patch works fine for me. I would add one thing though: close the frontend if it
is the wrong type. I have attached a new patch.
Thanks,
Hans
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diff -Nur w_scan-20080815/scan.c w_scan-20080815_patch3/scan.c
--- w_scan-20080815/scan.c 2008-08-16 09:02:01.000000000 +0100
+++ w_scan-20080815_patch3/scan.c 2008-11-06 17:31:23.000000000 +0000
@@ -77,7 +77,7 @@
.type = -1
};
-uint version = 20080815;
+uint version = 20081106;
int verbosity = 2;
#define ATSC_VSB 0x01
@@ -2579,7 +2579,7 @@
{
char frontend_devname [80];
int adapter = 999, frontend = 0, demux = 0;
- int opt, i;
+ int opt, i, j;
int frontend_fd;
int fe_open_mode;
int frontend_type = FE_OFDM;
@@ -2715,19 +2715,20 @@
if ( adapter == 999 ) {
info("Info: using DVB adapter auto detection.\n");
fe_open_mode = O_RDWR | O_NONBLOCK;
- for (i=0; i < 4; i++) {
- snprintf (frontend_devname, sizeof(frontend_devname), "/dev/dvb/adapter%i/frontend0", i);
- if ((frontend_fd = open (frontend_devname, fe_open_mode)) < 0) {
- info("Info: unable to open frontend %s'\n", frontend_devname);
+
+ for (i=0; i < 8; i++) {
+ for (j=0; j < 4; j++) {
+ snprintf (frontend_devname, sizeof(frontend_devname), "/dev/dvb/adapter%i/frontend%i", i, j);
+ if ((frontend_fd = open (frontend_devname, fe_open_mode)) < 0) {
continue;
}
- /* determine FE type and caps */
- if (ioctl(frontend_fd, FE_GET_INFO, &fe_info) == -1) {
+ /* determine FE type and caps */
+ if (ioctl(frontend_fd, FE_GET_INFO, &fe_info) == -1) {
info(" ERROR: unable to determine frontend type\n");
close (frontend_fd);
continue;
- }
- if (fe_info.type==frontend_type) {
+ }
+ if (fe_info.type == frontend_type) {
if (fe_info.type == FE_OFDM)
info(" Found DVB-T frontend. Using adapter %s\n",frontend_devname);
else if (fe_info.type == FE_ATSC)
@@ -2736,9 +2737,16 @@
info(" Found DVB-C frontend. Using adapter %s\n",frontend_devname);
close (frontend_fd);
adapter=i;
+ frontend=j;
+ i=999;
break;
- }
+ }
+ else {
+ info(" Wrong type, ignoring frontend %s\n",frontend_devname);
+ close (frontend_fd);
+ }
+ }
}
}
snprintf (frontend_devname, sizeof(frontend_devname),
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