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Hi all I'm trying to setup my skystar2 card to receive EUMETCAST data from HotBird13 (see at http://www.eumetsat.de/en/index.html?area=left7.html&body=/en/dps/dissemination/eumetcast.html&a=710&b=1&c=700&d=700&e=0) on my Red Hat 9.0 workstation using linuxtv 1.1.0. all modules and programs are compiled without errors. all necessary modules are inserted in the kernel without errors. in linuxtv-dvb-1.0.1 distribution there is a program called "scan" and this program works well: I obtainel the full list of channels on HotBird13. the problem is with the dvbtune command: looking at dvbtune.c source code and as we can see in the fragment below the message "Successfully opened network device, please configure the dvb interface\n" is printed indipendently from the result of ioctl 1398 #ifdef NEWSTRUCT 1399 sprintf(devnamen,"/dev/dvb/adapter%d/net0",dev); 1400 #else 1401 sprintf(devnamen,"/dev/ost/net%d",dev); 1402 #endif 1403 //printf("Trying to open %s\n",devnamen); 1404 if((fdn = open(devnamen,O_RDWR|O_NONBLOCK)) < 0) { 1405 fprintf(stderr, "Failed to open DVB NET DEVICE"); 1406 close(fd_frontend); 1407 if (fd_sec) close(fd_sec); 1408 } else { 1409 // Add the network interface 1410 ioctl( fdn,NET_ADD_IF,&netif); 1411 1412 close (fdn); 1413 printf("Successfully opened network device, please configure the dvb interface\n"); 1414 } 1415 } so I decided to modify the sorce code and I added some printf for diagnostic 1408 } else { 1409 // Add the network interface printf("trying to open %s\n", devnamen); 1410 // ioctl( fdn,NET_ADD_IF,&netif); printf("result from ioctl : %d errno = %d\n", ioctl( fdn,NET_ADD_IF,&netif), errno); perror("ioctl message:); 1411 1412 close (fdn); 1413 printf("Successfully opened network device, please configure the dvb interface\n"); 1414 } 1415 } and then, running the program: [root@localhost dvbtune]# strace -o tune.log ./dvbtune -c 0 -f 11096000 -p H -s 27500 -n 100 Using DVB card "Zarlink MT312" tuning DVB-S to L-Band:1107311556, Pol:H Srate=27500000, 22kHz=off polling.... Getting frontend event FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_SYNC Bit error rate: 0 Signal strength: 16022 SNR: 51199 FE_STATUS: FE_HAS_SIGNAL FE_HAS_LOCK FE_HAS_CARRIER FE_HAS_SYNC trying to open /dev/dvb/adapter0/net0 result from ioctl : -1 errno = 0 ioctl message: Operation not permitted Successfully opened network device, please configure the dvb interface so we can see that ioctl fails with message "operation not permitted" in attachmet there is also the file tune.log and the network interface dvb0_0 IS NOT CREATED . thanks for the help Andrea |
execve("./dvbtune", ["./dvbtune", "-c", "0", "-f", "11096000", "-p", "H", "-s", "27500", "-n", "100"], [/* 38 vars */]) = 0
uname({sys="Linux", node="localhost.localdomain", ...}) = 0
brk(0) = 0x804f688
old_mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40016000
open("/etc/ld.so.preload", O_RDONLY) = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=115585, ...}) = 0
old_mmap(NULL, 115585, PROT_READ, MAP_PRIVATE, 3, 0) = 0x40017000
close(3) = 0
open("/lib/tls/libc.so.6", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0`V\1B4\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1531064, ...}) = 0
old_mmap(0x42000000, 1257224, PROT_READ|PROT_EXEC, MAP_PRIVATE, 3, 0) = 0x42000000
old_mmap(0x4212e000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED, 3, 0x12e000) = 0x4212e000
old_mmap(0x42131000, 7944, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x42131000
close(3) = 0
set_thread_area({entry_number:-1 -> 6, base_addr:0x40016a00, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0
munmap(0x40017000, 115585) = 0
open("/dev/dvb/adapter0/dvr0", O_RDONLY|O_NONBLOCK) = 3
open("/dev/dvb/adapter0/frontend0", O_RDWR) = 4
open("/dev/dvb/adapter0/demux0", O_RDWR|O_NONBLOCK) = 5
open("/dev/dvb/adapter0/demux0", O_RDWR) = 6
open("/dev/dvb/adapter0/demux0", O_RDWR) = 7
open("/dev/dvb/adapter0/demux0", O_RDWR) = 8
open("/dev/dvb/adapter0/demux0", O_RDWR) = 9
open("/dev/dvb/adapter0/demux0", O_RDWR|O_NONBLOCK) = 10
ioctl(7, 0x6f2a, 0) = 0
ioctl(6, 0x6f2a, 0) = 0
ioctl(8, 0x6f2a, 0) = 0
ioctl(4, 0x80a86f3d, 0xbffff550) = 0
write(2, "Using DVB card \"Zarlink MT312\"\n", 31) = 31
write(2, "tuning DVB-S to L-Band:110731155"..., 67) = 67
ioctl(4, 0x6f43, 0x1) = 0
ioctl(4, 0x6f42, 0x1) = 0
nanosleep({0, 100000000}, NULL) = 0
ioctl(4, 0x40246f4c, 0xbffff600) = 0
write(2, "polling....\n", 12) = 12
poll([{fd=4, events=POLLIN, revents=POLLIN}], 1, 10000) = 1
write(2, "Getting frontend event\n", 23) = 23
ioctl(4, 0x80286f4e, 0xbffff4e0) = 0
write(2, "FE_STATUS:", 10) = 10
write(2, " FE_HAS_SIGNAL", 14) = 14
write(2, " FE_HAS_LOCK", 12) = 12
write(2, " FE_HAS_CARRIER", 15) = 15
write(2, " FE_HAS_SYNC", 12) = 12
write(2, "\n", 1) = 1
ioctl(4, 0x80046f46, 0xbffff51c) = 0
write(2, "Bit error rate: 0\n", 18) = 18
ioctl(4, 0x80026f47, 0xbffff51c) = 0
write(2, "Signal strength: 16022\n", 23) = 23
ioctl(4, 0x80026f48, 0xbffff51c) = 0
write(2, "SNR: 51199\n", 11) = 11
ioctl(4, 0x80046f45, 0xbffff518) = 0
write(2, "FE_STATUS:", 10) = 10
write(2, " FE_HAS_SIGNAL", 14) = 14
write(2, " FE_HAS_LOCK", 12) = 12
write(2, " FE_HAS_CARRIER", 15) = 15
write(2, " FE_HAS_SYNC", 12) = 12
write(2, "\n", 1) = 1
open("/dev/dvb/adapter0/net0", O_RDWR|O_NONBLOCK) = 11
fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 2), ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x40017000
write(1, "trying to open /dev/dvb/adapter0"..., 38) = 38
ioctl(11, 0xc0046f34, 0xbffff6ac) = -1 EPERM (Operation not permitted)
write(1, "result from ioctl : -1 errno = 0"..., 33) = 33
write(2, "ioctl message: Operation not per"..., 39) = 39
close(11) = 0
write(1, "Successfully opened network devi"..., 71) = 71
close(4) = 0
munmap(0x40017000, 4096) = 0
exit_group(0) = ?