static void getbusid(int fd)
{
const char *busid = drmGetBusid(fd);
printf(" Busid: %s\n", *busid ? busid : "(not set)");
drmFreeBusid(busid);
}
int main(int argc, char **argv)
{
int fd, newlyopened;
drmVersionPtr retval;
char *busid;
//drmDevicePtr dev;
//*
fd = drmOpen(NULL, "pci:0000:01:00.0");
assert(fd >= 0);
retval = drmGetVersion(fd);
printf("name=%s\n", retval->name);
drmFreeVersion(retval);
busid = drmGetBusid(fd);
printf("busid=%s\n", busid);
drmFreeBusid(busid);
/*
assert(!drmGetDevice(fd, &dev));
printf("pci:%04x:%02x:%02x.%d\n",
dev->businfo.pci->domain,
dev->businfo.pci->bus,
dev->businfo.pci->dev,
dev->businfo.pci->func);
*/
drmClose(fd);
//*/
fd = drmOpenOnceWithType("pci:0000:01:00.0", &newlyopened, DRM_NODE_PRIMARY);
//fd = open("/dev/dri/card0", O_RDWR);
assert(fd >= 0);
retval = drmGetVersion(fd);
printf("name=%s\n", retval->name);
drmFreeVersion(retval);
busid = drmGetBusid(fd);
printf("busid=%s\n", busid);
drmFreeBusid(busid);
/*
assert(!drmGetDevice(fd, &dev));
printf("pci:%04x:%02x:%02x.%d\n",
dev->businfo.pci->domain,
dev->businfo.pci->bus,
dev->businfo.pci->dev,
dev->businfo.pci->func);
*/
drmClose(fd);
/*
drmDevicePtr devs[16];
int num = drmGetDevices(devs, 16);
assert(num >= 0);
int i;
for (i = 0; i < num; i++) {
printf("pci:%04x:%02x:%02x.%d\n",
devs[i]->businfo.pci->domain,
devs[i]->businfo.pci->bus,
devs[i]->businfo.pci->dev,
devs[i]->businfo.pci->func);
}
*/
/*
struct dirent *dent;
struct stat sbuf;
DIR *sysdir;
sysdir = opendir("/dev/dri");
assert(sysdir);
while ((dent = readdir(sysdir))) {
char node[1024];
snprintf(node, 1024, "/dev/dri/%s", dent->d_name);
if (stat(node, &sbuf))
continue;
printf("path=%s, dev=%x rdev=%x maj=%d min=%d\n", node, sbuf.st_dev, sbuf.st_rdev, major(sbuf.st_rdev), minor(sbuf.st_rdev));
}
*/
fd = open("/dev/dri/card0", O_RDWR);
assert(fd >= 0);
char *path = drmGetDeviceNameFromFd(fd);
assert(path != NULL);
printf("get path = %s\n", path);
return 0;
}
