- dbg("error: getting class '%s' specific file '%s'", class_dev->classname, file);
- if (error)
- *error = "class specific file unavailable";
- return -ENOENT;
-}
-
-/* check if we need to wait for a physical device */
-static int class_device_expect_no_device_link(struct sysfs_class_device *class_dev)
-{
- /* list of devices without a "device" symlink to the physical device
- * if device is set to NULL, no devices in that subsystem has a link */
- static const struct class_device {
- const char *subsystem;
- const char *device;
- } class_device[] = {
- { .subsystem = "block", .device = "double" },
- { .subsystem = "block", .device = "nb" },
- { .subsystem = "block", .device = "ram" },
- { .subsystem = "block", .device = "loop" },
- { .subsystem = "block", .device = "fd" },
- { .subsystem = "block", .device = "md" },
- { .subsystem = "block", .device = "dos_cd" },
- { .subsystem = "block", .device = "rflash" },
- { .subsystem = "block", .device = "rom" },
- { .subsystem = "block", .device = "rrom" },
- { .subsystem = "block", .device = "flash" },
- { .subsystem = "block", .device = "msd" },
- { .subsystem = "block", .device = "sbpcd" },
- { .subsystem = "block", .device = "pcd" },
- { .subsystem = "block", .device = "pf" },
- { .subsystem = "block", .device = "scd" },
- { .subsystem = "block", .device = "ubd" },
- { .subsystem = "block", .device = "dm-" },
- { .subsystem = "block", .device = "bcrypt" },
- { .subsystem = "input", .device = "event" },
- { .subsystem = "input", .device = "mice" },
- { .subsystem = "input", .device = "mouse" },
- { .subsystem = "input", .device = "ts" },
- { .subsystem = "input", .device = "js" },
- { .subsystem = "vc", .device = NULL },
- { .subsystem = "tty", .device = NULL },
- { .subsystem = "cpuid", .device = "cpu" },
- { .subsystem = "graphics", .device = "fb" },
- { .subsystem = "mem", .device = NULL },
- { .subsystem = "misc", .device = NULL },
- { .subsystem = "msr", .device = NULL },
- { .subsystem = "netlink", .device = NULL },
- { .subsystem = "net", .device = "sit" },
- { .subsystem = "net", .device = "lo" },
- { .subsystem = "net", .device = "tap" },
- { .subsystem = "net", .device = "ipsec" },
- { .subsystem = "net", .device = "dummy" },
- { .subsystem = "net", .device = "irda" },
- { .subsystem = "net", .device = "ppp" },
- { .subsystem = "net", .device = "tun" },
- { .subsystem = "net", .device = "pan" },
- { .subsystem = "net", .device = "bnep" },
- { .subsystem = "net", .device = "vmnet" },
- { .subsystem = "net", .device = "ippp" },
- { .subsystem = "net", .device = "nlv" },
- { .subsystem = "net", .device = "atml" },
- { .subsystem = "ppp", .device = NULL },
- { .subsystem = "sound", .device = NULL },
- { .subsystem = "printer", .device = "lp" },
- { .subsystem = "ppdev", .device = NULL },
- { .subsystem = "nvidia", .device = NULL },
- { .subsystem = "video4linux", .device = "vbi" },
- { .subsystem = "dvb", .device = NULL },
- { .subsystem = "lirc", .device = NULL },
- { .subsystem = "firmware", .device = NULL },
- { .subsystem = "drm", .device = NULL },
- { .subsystem = "pci_bus", .device = NULL },
- { .subsystem = "ieee1394", .device = NULL },
- { .subsystem = "ieee1394_host", .device = NULL },
- { .subsystem = "ieee1394_node", .device = NULL },
- { .subsystem = "raw", .device = NULL },
- { .subsystem = "zaptel", .device = NULL },
- { .subsystem = "tiglusb", .device = NULL },
- { .subsystem = "ppdev", .device = NULL },
- { .subsystem = "ticables", .device = NULL },
- { .subsystem = "snsc", .device = NULL },
- { .subsystem = "staliomem", .device = NULL },
- { .subsystem = "tape", .device = NULL },
- { .subsystem = "ip2", .device = NULL },
- { .subsystem = "tpqic02", .device = NULL },
- { .subsystem = "dsp56k", .device = NULL },
- { .subsystem = "zft", .device = NULL },
- { .subsystem = "adb", .device = NULL },
- { .subsystem = "cosa", .device = NULL },
- { .subsystem = "pg", .device = NULL },
- { .subsystem = "pt", .device = NULL },
- { .subsystem = "capi", .device = NULL },
- { NULL, NULL }
- };
- const struct class_device *classdevice;
- unsigned int len;
-
- /* the kernel may tell us what to wait for */
- if (kernel_release_satisfactory(2,6,10) > 0)
- if (getenv("PHYSDEVPATH") == NULL) {
- dbg("the kernel says, that there is no physical device for '%s'", class_dev->path);
- return 1;
+ /* it is a new device */
+ dbg("new uncached device '%s'", devpath_real);
+ dev = malloc(sizeof(struct sysfs_device));
+ if (dev == NULL)
+ return NULL;
+ memset(dev, 0x00, sizeof(struct sysfs_device));
+
+ sysfs_device_set_values(dev, devpath_real, NULL, NULL);
+
+ /* get subsystem */
+ if (strncmp(dev->devpath, "/class/", 7) == 0) {
+ strlcpy(dev->subsystem, &dev->devpath[7], sizeof(dev->subsystem));
+ pos = strchr(dev->subsystem, '/');
+ if (pos != NULL)
+ pos[0] = '\0';
+ else
+ dev->subsystem[0] = '\0';
+ } else if (strncmp(dev->devpath, "/block/", 7) == 0) {
+ strlcpy(dev->subsystem, "block", sizeof(dev->subsystem));
+ } else if (strncmp(dev->devpath, "/devices/", 9) == 0) {
+ /* get subsystem from "bus" link */
+ strlcpy(link_path, sysfs_path, sizeof(link_path));
+ strlcat(link_path, dev->devpath, sizeof(link_path));
+ strlcat(link_path, "/bus", sizeof(link_path));
+ len = readlink(link_path, link_target, sizeof(link_target));
+ if (len > 0) {
+ link_target[len] = '\0';
+ dbg("bus link '%s' points to '%s'", link_path, link_target);
+ pos = strrchr(link_target, '/');
+ if (pos != NULL)
+ strlcpy(dev->subsystem, &pos[1], sizeof(dev->subsystem));
+ } else {
+ /* get subsystem from "subsystem" link */
+ strlcpy(link_path, sysfs_path, sizeof(link_path));
+ strlcat(link_path, dev->devpath, sizeof(link_path));
+ strlcat(link_path, "/subsystem", sizeof(link_path));
+ len = readlink(link_path, link_target, sizeof(link_target));
+ if (len > 0) {
+ link_target[len] = '\0';
+ dbg("subsystem link '%s' points to '%s'", link_path, link_target);
+ pos = strrchr(link_target, '/');
+ if (pos != NULL)
+ strlcpy(dev->subsystem, &pos[1], sizeof(dev->subsystem));
+ }