diff options
Diffstat (limited to 'samples/hidraw/hid-example.c')
| -rw-r--r-- | samples/hidraw/hid-example.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/samples/hidraw/hid-example.c b/samples/hidraw/hid-example.c index 512a7e50bcae..0f73ace3c6c3 100644 --- a/samples/hidraw/hid-example.c +++ b/samples/hidraw/hid-example.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Hidraw Userspace Example * @@ -46,10 +47,14 @@ int main(int argc, char **argv) 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("/dev/hidraw0", O_RDWR|O_NONBLOCK); + fd = open(device, O_RDWR|O_NONBLOCK); if (fd < 0) { perror("Unable to open device"); @@ -114,7 +119,7 @@ int main(int argc, char **argv) if (res < 0) perror("HIDIOCSFEATURE"); else - printf("ioctl HIDIOCGFEATURE returned: %d\n", res); + printf("ioctl HIDIOCSFEATURE returned: %d\n", res); /* Get Feature */ buf[0] = 0x9; /* Report Number */ @@ -123,7 +128,7 @@ int main(int argc, char **argv) perror("HIDIOCGFEATURE"); } else { printf("ioctl HIDIOCGFEATURE returned: %d\n", res); - printf("Report data (not containing the report number):\n\t"); + printf("Report data:\n\t"); for (i = 0; i < res; i++) printf("%hhx ", buf[i]); puts("\n"); |