From ec02ac2b7e1ad04ab2486fe9b2fbfc3ad5178f7c Mon Sep 17 00:00:00 2001 From: Daniel Kurtz Date: Thu, 28 Jun 2012 21:08:02 +0800 Subject: [PATCH] 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 Signed-off-by: Henrik Rydberg --- drivers/input/touchscreen/atmel_mxt_ts.c | 5 +++++ 1 file changed, 5 insertions(+) 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; -- 2.20.1