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| author | Daniel Kurtz <djkurtz@chromium.org> | 2012-06-28 21:08:02 +0800 |
|---|---|---|
| committer | Henrik Rydberg <rydberg@euromail.se> | 2012-06-29 15:58:01 +0200 |
| commit | ec02ac2b7e1ad04ab2486fe9b2fbfc3ad5178f7c (patch) | |
| tree | 5b2fc032f191ddff7753957a505bb5ab97584e3d /drivers/input/touchscreen/atmel_mxt_ts.c | |
| parent | 27c347d64f5e4a7e141f6bdb85bbf59e0f1dcde6 (diff) | |
| download | lwn-ec02ac2b7e1ad04ab2486fe9b2fbfc3ad5178f7c.tar.gz lwn-ec02ac2b7e1ad04ab2486fe9b2fbfc3ad5178f7c.zip | |
Input: atmel_mxt_ts - derive phys from i2c client adapter
This allows userspace to more easily distinguish which bus a particular
atmel_mxt_ts device is attached to.
The resulting phys will be something like:
i2c-1-0067/input0
Signed-off-by: Daniel Kurtz <djkurtz@chromium.org>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Diffstat (limited to 'drivers/input/touchscreen/atmel_mxt_ts.c')
| -rw-r--r-- | drivers/input/touchscreen/atmel_mxt_ts.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 42e645062c20..b1108cae73ac 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -250,6 +250,7 @@ struct mxt_finger { struct mxt_data { struct i2c_client *client; struct input_dev *input_dev; + char phys[64]; /* device physical location */ const struct mxt_platform_data *pdata; struct mxt_object *object_table; struct mxt_info info; @@ -1106,6 +1107,10 @@ static int __devinit mxt_probe(struct i2c_client *client, } input_dev->name = "Atmel maXTouch Touchscreen"; + snprintf(data->phys, sizeof(data->phys), "i2c-%u-%04x/input0", + client->adapter->nr, client->addr); + input_dev->phys = data->phys; + input_dev->id.bustype = BUS_I2C; input_dev->dev.parent = &client->dev; input_dev->open = mxt_input_open; |