diff options
Diffstat (limited to 'Documentation/i2c')
| -rw-r--r-- | Documentation/i2c/writing-clients | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/Documentation/i2c/writing-clients b/Documentation/i2c/writing-clients index 97e138cbb2a9..077275722a7c 100644 --- a/Documentation/i2c/writing-clients +++ b/Documentation/i2c/writing-clients | |||
| @@ -241,9 +241,10 @@ Below, some things are only needed if this is a `sensors' driver. Those | |||
| 241 | parts are between /* SENSORS ONLY START */ and /* SENSORS ONLY END */ | 241 | parts are between /* SENSORS ONLY START */ and /* SENSORS ONLY END */ |
| 242 | markers. | 242 | markers. |
| 243 | 243 | ||
| 244 | This function should only return an error (any value != 0) if there is | 244 | Returning an error different from -ENODEV in a detect function will cause |
| 245 | some reason why no more detection should be done anymore. If the | 245 | the detection to stop: other addresses and adapters won't be scanned. |
| 246 | detection just fails for this address, return 0. | 246 | This should only be done on fatal or internal errors, such as a memory |
| 247 | shortage or i2c_attach_client failing. | ||
| 247 | 248 | ||
| 248 | For now, you can ignore the `flags' parameter. It is there for future use. | 249 | For now, you can ignore the `flags' parameter. It is there for future use. |
| 249 | 250 | ||