sensors-detect.patch

电脑usb转接成I2C口,全套资料,包括电路图和源代码,驱动等等

--- sensors-detect.old	2006-11-20 18:19:14.000000000 +0100
+++ sensors-detect	2006-12-09 13:22:06.000000000 +0100
@@ -1024,6 +1024,18 @@
        i2c_detect => sub { adm9240_detect(1, @_); },
      },
      {
+       name => "Devantech CMPS03",
+       driver => "cmps03",
+       i2c_addrs => [0x60],
+       i2c_detect => sub { cmps03_detect(@_); },
+     },
+     {
+       name => "Devantech TPA81",
+       driver => "tpa81",
+       i2c_addrs => [0x68],
+       i2c_detect => sub { tpa81_detect(@_); },
+     },
+     {
        name => "National Semiconductor LM81",
        driver => "adm9240",
        i2c_addrs => [0x2c..0x2f],
@@ -3332,6 +3344,54 @@
 # $_[0]: A reference to the file descriptor to access this chip.
 #        We may assume an i2c_set_slave_addr was already done.
 # $_[1]: Address
+# Returns: undef if not detected, 4 if detected
+# Registers used:
+#   0x00: Firmware version
+#   0x02: Heading High Byte
+#   0x0C: Internal Value
+#   0x0D: Internal Value
+# Detection is weak. May become better if correlation between
+# byte value in register 1 and word value in 2/3 is detected
+sub cmps03_detect
+{
+  my $i;
+  my ($file,$addr) = @_;
+  my $zero0 = i2c_smbus_read_byte_data($file,0x0c);
+  my $zero1 = i2c_smbus_read_byte_data($file,0x0d);
+  return if ($zero0 | $zero1) != 0;
+  my $version = i2c_smbus_read_byte_data($file,0x00);
+  return if (($version < 8) || ($version > 15));
+  my $heading_high = i2c_smbus_read_byte_data($file,0x02);
+  return if (($heading_high < 0)||($heading_high > 0x0e));
+  return 4;
+}
+
+# $_[0]: A reference to the file descriptor to access this chip.
+#        We may assume an i2c_set_slave_addr was already done.
+# $_[1]: Address
+# Returns: undef if not detected, 4 if detected
+# Registers used:
+#   0x00: Firmware version
+#   0x01-0x09: temperatures (4-100 deg celsius)
+sub tpa81_detect
+{
+  my $i;
+  my ($file,$addr) = @_;
+  my $ver = i2c_smbus_read_byte_data($file,0x00);
+  return if ($ver) < 6;
+  return if ($ver) > 8;
+
+  for ($i = 0x01; $i <= 0x09; $i++) {
+    my $tmp = i2c_smbus_read_byte_data($file,$i);
+    return if ($tmp) < 4;
+    return if ($tmp) > 100;
+  }
+  return 4;
+}
+
+# $_[0]: A reference to the file descriptor to access this chip.
+#        We may assume an i2c_set_slave_addr was already done.
+# $_[1]: Address
 # Returns: undef if not detected, 1 to 3 if detected.
 # Registers used:
 #   0x00: Configuration register