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ltunify: fix harmless compiler warning

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bInterfaceNumber is expected to return the `%02x` format according to
the current kernel sources. Even if that is not true, a user can always
manually specify the hidraw device if the wrong device is detected.
This commit is contained in:
Peter Wu
2020-06-14 22:59:19 +02:00
parent 872a781e07
commit b68dc9af6d
1 changed files with 4 additions and 1 deletions
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5
ltunify.c
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@@ -1214,7 +1214,10 @@ int open_hidraw(void) {
if (pid == PID_NANO_RECEIVER_2) {
int iface = -1;
if ((fp = fopen_format("/sys/class/hidraw/%s/device/../bInterfaceNumber", dev_name))) {
fscanf(fp, "%02x", &iface);
int m = fscanf(fp, "%02x", &iface);
if (m != 1) {
iface = -1;
}
fclose(fp);
}
if (iface == 0) {