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authorDaniel Kurtz <djkurtz@chromium.org>2012-06-28 21:08:02 +0800
committerHenrik Rydberg <rydberg@euromail.se>2012-06-29 15:58:01 +0200
commitec02ac2b7e1ad04ab2486fe9b2fbfc3ad5178f7c (patch)
tree5b2fc032f191ddff7753957a505bb5ab97584e3d /drivers/input/touchscreen
parent27c347d64f5e4a7e141f6bdb85bbf59e0f1dcde6 (diff)
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')
-rw-r--r--drivers/input/touchscreen/atmel_mxt_ts.c5
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;