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#280

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This commit is contained in:
mstroh76
2024-09-09 14:49:15 +02:00
parent b6bc43b562
commit 9e7c71f67d
4 changed files with 13 additions and 10 deletions
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12
wiringPi/wiringPi.c
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@@ -1671,14 +1671,14 @@ int OpenAndCheckGpioChip(int GPIONo, const char* label, const unsigned int lines
return Fd;
} else {
if (wiringPiDebug) {
printf ("wiringPi: Open chip %s succeded, fd=%d\n", szGPIOChip, Fd) ;
printf("wiringPi: Open chip %s succeded, fd=%d\n", szGPIOChip, Fd) ;
}
struct gpiochip_info chipinfo;
ZeroMemory(&chipinfo, sizeof(chipinfo));
int ret = ioctl(Fd, GPIO_GET_CHIPINFO_IOCTL, &chipinfo);
if (0==ret) {
if (wiringPiDebug) {
printf ("%s: name=%s, label=%s, lines=%u\n", szGPIOChip, chipinfo.name, chipinfo.label, chipinfo.lines) ;
printf("%s: name=%s, label=%s, lines=%u\n", szGPIOChip, chipinfo.name, chipinfo.label, chipinfo.lines) ;
}
int chipOK = 1;
if (label[0]!='\0' && NULL==strstr(chipinfo.label, label)) {
@@ -1688,10 +1688,12 @@ int OpenAndCheckGpioChip(int GPIONo, const char* label, const unsigned int lines
chipOK = 0;
}
if (chipOK) {
printf ("%s: valid, fd=%d\n", szGPIOChip, Fd);
if (wiringPiDebug) {
printf("%s: valid, fd=%d\n", szGPIOChip, Fd);
}
} else {
if (wiringPiDebug) {
printf ("%s: invalid, search for '%s' with %u lines!\n", szGPIOChip, label, lines) ;
printf("%s: invalid, search for '%s' with %u lines!\n", szGPIOChip, label, lines) ;
}
close(Fd);
return -1; // invalid chip
@@ -1710,7 +1712,7 @@ int wiringPiGpioDeviceGetFd() {
chipFd = OpenAndCheckGpioChip(4, "rp1", 54); // /dev/gpiochip4 @ Pi5 with older kernel
}
} else {
// not sure if all Pis have 54 lines (Pi1v1, Pi1v2 and CM ?), so this check is disabled
// not all Pis have same number of lines: Pi0, Pi1, Pi3, 54 lines, Pi4, 58 lines (CM ?), see #280, so this check is disabled
chipFd = OpenAndCheckGpioChip(0, "bcm", 0);
}
}