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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:49:52 +0000
commit55944e5e40b1be2afc4855d8d2baf4b73d1876b5 (patch)
tree33f869f55a1b149e9b7c2b7e201867ca5dd52992 /man/hwdb-usb-device.c
parentInitial commit. (diff)
downloadsystemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.tar.xz
systemd-55944e5e40b1be2afc4855d8d2baf4b73d1876b5.zip
Adding upstream version 255.4.upstream/255.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'man/hwdb-usb-device.c')
-rw-r--r--man/hwdb-usb-device.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/man/hwdb-usb-device.c b/man/hwdb-usb-device.c
new file mode 100644
index 0000000..19a5db8
--- /dev/null
+++ b/man/hwdb-usb-device.c
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: MIT-0 */
+
+#include <stdio.h>
+#include <stdint.h>
+#include <sd-hwdb.h>
+
+int print_usb_properties(uint16_t vid, uint16_t pid) {
+ char match[STRLEN("usb:vp") + DECIMAL_STR_MAX(uint16_t) * 2];
+ sd_hwdb *hwdb;
+ const char *key, *value;
+ int r;
+
+ /* Match this USB vendor and product ID combination */
+ xsprintf(match, "usb:v%04Xp%04X", vid, pid);
+
+ r = sd_hwdb_new(&hwdb);
+ if (r < 0)
+ return r;
+
+ SD_HWDB_FOREACH_PROPERTY(hwdb, match, key, value)
+ printf("%s: \"%s\" → \"%s\"\n", match, key, value);
+
+ sd_hwdb_unref(hwdb);
+ return 0;
+}
+
+int main(int argc, char **argv) {
+ print_usb_properties(0x046D, 0xC534);
+ return 0;
+}