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.
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?
--- w_scan-20080815/scan.c 2008-09-09 19:21:36.698571084 +0200
+++ w_scan-20081106/scan.c 2008-11-06 17:28:19.720159563 +0100
@@ -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 +2715,19 @@
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 +2736,14 @@
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);
+ }
}
}
snprintf (frontend_devname, sizeof(frontend_devname),
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