diff options
| -rw-r--r-- | v4l2-apps/util/v4l2_sysfs_path.c | 52 |
1 files changed, 42 insertions, 10 deletions
diff --git a/v4l2-apps/util/v4l2_sysfs_path.c b/v4l2-apps/util/v4l2_sysfs_path.c index 8763c34e4..2fe89b6c7 100644 --- a/v4l2-apps/util/v4l2_sysfs_path.c +++ b/v4l2-apps/util/v4l2_sysfs_path.c @@ -16,20 +16,19 @@ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ - - #include "../lib/v4l2_driver.h" #include <sysfs/libsysfs.h> #include <errno.h> #include <malloc.h> #include <stdio.h> #include <string.h> +#include <dirent.h> #define USB_ID "usb-" #define PCI_ID "PCI:" #define PCIe_ID "PCIe:" -char *obtain_bus_sysfs_path(const char *bus_info) +char *obtain_bus_sysfs_path(char *bus_info) { struct sysfs_device *pcictl = NULL; struct sysfs_bus *bus = NULL; @@ -136,24 +135,57 @@ err: return NULL; } -int main(void) +void get_sysfs(char *fname) { struct v4l2_driver drv; char *path; - - if (v4l2_open("/dev/video0", 0, &drv) < 0) { - perror("open /dev/video0"); - return -1; + if (v4l2_open(fname, 0, &drv) < 0) { + perror(fname); + return; } - printf("bus info = %s\n", drv.cap.bus_info); + printf("device = %s\n", fname); + printf("bus info = %s\n", drv.cap.bus_info); path = obtain_bus_sysfs_path((char *)drv.cap.bus_info); if (path) { - printf("sysfs path = %s\n", path); + printf("sysfs path = %s\n\n", path); free(path); } v4l2_close(&drv); +} +void read_dir(char *dirname) +{ + DIR *dir; + struct dirent *entry; + const char *vid = "video"; + const char *rad = "radio"; + char *p, name[512]; + + dir = opendir(dirname); + if (!dir) + return; + + strcpy(name, dirname); + strcat(name, "/"); + p = name + strlen(name); + + entry = readdir(dir); + while (entry) { + if (!strncmp(entry->d_name, vid, strlen(vid)) || + !strncmp(entry->d_name, rad, strlen(rad))) { + strcpy(p, entry->d_name); + + get_sysfs(name); + } + entry = readdir(dir); + } + closedir(dir); +} + +int main(void) +{ + read_dir("/dev"); return 0; } |