diff options
| -rw-r--r-- | sys/dev/i2c/i2c_scan.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/sys/dev/i2c/i2c_scan.c b/sys/dev/i2c/i2c_scan.c index f5f2e281630..7d81340a3cb 100644 --- a/sys/dev/i2c/i2c_scan.c +++ b/sys/dev/i2c/i2c_scan.c @@ -1,4 +1,4 @@ -/* $OpenBSD: i2c_scan.c,v 1.37 2005/12/29 16:08:03 kettenis Exp $ */ +/* $OpenBSD: i2c_scan.c,v 1.38 2005/12/30 04:05:30 deraadt Exp $ */ /* * Copyright (c) 2005 Theo de Raadt <deraadt@openbsd.org> @@ -148,6 +148,8 @@ lm75probe(void) mains[0] = iicprobew(0x02); mains[1] = iicprobew(0x03); + if (main == 0xff && mains[0] == 0xffff && mains[1] == 0xffff) + return (0); mains[2] = iicprobew(0x04); /* read Low Limit */ if (iicprobew(0x07) != mains[2] || iicprobew(0x07) != mains[2]) return (0); @@ -158,10 +160,10 @@ lm75probe(void) if (mains[4] != mains[3] || mains[5] != mains[3]) return (0); -#ifdef I2C_DEBUG +#if 0 printf("lm75probe: %02x %04x %04x %04x %04x %04x %04x\n", main, mains[0], mains[1], mains[2], mains[3], mains[4], mains[5]); -#endif /* I2C_DEBUG */ +#endif /* a real lm75/77 repeats it's registers.... */ for (i = 0x08; i < 0xff; i += 8) { |