/* * Hidraw Userspace Example * * Copyright (c) 2010 Alan Ott * Copyright (c) 2010 Signal 11 Software * * The code may be used by anyone for any purpose, * and can serve as a starting point for developing * applications using hidraw. */ /* Linux */ #include #include #include /* * Ugly hack to work around failing compilation on systems that don't * yet populate new version of hidraw.h to userspace. */ #ifndef HIDIOCSFEATURE #warning Please have your distro update the userspace kernel headers #define HIDIOCSFEATURE(len) _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x06, len) #define HIDIOCGFEATURE(len) _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x07, len) #endif /* Unix */ #include #include #include #include #include /* C */ #include #include #include #include const char *bus_str(int bus); int main(int argc, char **argv) { int fd; int i, res, desc_size = 0; char buf[256]; struct hidraw_report_descriptor rpt_desc; struct hidraw_devinfo info; char *device = "/dev/hidraw0"; if (argc > 1) device = argv[1]; /* Open the Device with non-blocking reads. In real life, don't use a hard coded path; use libudev instead. */ fd = open(device, O_RDWR|O_NONBLOCK); if (fd < 0) { perror("Unable to open device"); return 1; } memset(&rpt_desc, 0x0, sizeof(rpt_desc)); memset(&info, 0x0, sizeof(info)); memset(buf, 0x0, sizeof(buf)); /* Get Report Descriptor Size */ res = ioctl(fd, HIDIOCGRDESCSIZE, &desc_size); if (res < 0) perror("HIDIOCGRDESCSIZE"); else printf("Report Descriptor Size: %d\n", desc_size); /* Get Report Descriptor */ rpt_desc.size = desc_size; res = ioctl(fd, HIDIOCGRDESC, &rpt_desc); if (res < 0) { perror("HIDIOCGRDESC"); } else { printf("Report Descriptor:\n"); for (i = 0; i < rpt_desc.size; i++) printf("%hhx ", rpt_desc.value[i]); puts("\n"); } /* Get Raw Name */ res = ioctl(fd, HIDIOCGRAWNAME(256), buf); if (res < 0) perror("HIDIOCGRAWNAME"); else printf("Raw Name: %s\n", buf); /* Get Physical Location */ res = ioctl(fd, HIDIOCGRAWPHYS(256), buf); if (res < 0) perror("HIDIOCGRAWPHYS"); else printf("Raw Phys: %s\n", buf); /* Get Raw Info */ res = ioctl(fd, HIDIOCGRAWINFO, &info); if (res < 0) { perror("HIDIOCGRAWINFO"); } else { printf("Raw Info:\n"); printf("\tbustype: %d (%s)\n", info.bustype, bus_str(info.bustype)); printf("\tvendor: 0x%04hx\n", info.vendor); printf("\tproduct: 0x%04hx\n", info.product); } /* Set Feature */ buf[0] = 0x9; /* Report Number */ buf[1] = 0xff; buf[2] = 0xff; buf[3] = 0xff; res = ioctl(fd, HIDIOCSFEATURE(4), buf); if (res < 0) perror("HIDIOCSFEATURE"); else printf("ioctl HIDIOCGFEATURE returned: %d\n", res); /* Get Feature */ buf[0] = 0x9; /* Report Number */ res = ioctl(fd, HIDIOCGFEATURE(256), buf); if (res < 0) { perror("HIDIOCGFEATURE"); } else { printf("ioctl HIDIOCGFEATURE returned: %d\n", res); printf("Report data (not containing the report number):\n\t"); for (i = 0; i < res; i++) printf("%hhx ", buf[i]); puts("\n"); } /* Send a Report to the Device */ buf[0] = 0x1; /* Report Number */ buf[1] = 0x77; res = write(fd, buf, 2); if (res < 0) { printf("Error: %d\n", errno); perror("write"); } else { printf("write() wrote %d bytes\n", res); } /* Get a report from the device */ res = read(fd, buf, 16); if (res < 0) { perror("read"); } else { printf("read() read %d bytes:\n\t", res); for (i = 0; i < res; i++) printf("%hhx ", buf[i]); puts("\n"); } close(fd); return 0; } const char * bus_str(int bus) { switch (bus) { case BUS_USB: return "USB"; break; case BUS_HIL: return "HIL"; break; case BUS_BLUETOOTH: return "Bluetooth"; break; case BUS_VIRTUAL: return "Virtual"; break; default: return "Other"; break; } } cludemode:
Diffstat (limited to 'net')
-rw-r--r--net/ipv6/addrconf.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c