[v2,3/4] HID: hid-lg4ff: Set absolute axes parametes on DFP

Commit Message

Michal Malý Sept. 24, 2012, 10:13 a.m. UTC

Removed a misleading "Should never happen" code comment.

Signed-off-by: Michal Malý <[e-mail]>
---
From a81aa90d4155fd3b223a7149f3774748d7061aba Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michal=20Mal=C3=BD?= <[e-mail]>
Date: Sun, 23 Sep 2012 23:56:39 +0200
Subject: [PATCH 3/4] Set absolute axes parameters manually on DFP.

---
 drivers/hid/hid-lg4ff.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

Patch

diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
index fe15b3b..4ea7cca 100644
--- a/drivers/hid/hid-lg4ff.c
+++ b/drivers/hid/hid-lg4ff.c
@@ -43,6 +43,11 @@ 
 #define G27_REV_MAJ 0x12
 #define G27_REV_MIN 0x38
 
+#define DFP_X_MIN 0
+#define DFP_X_MAX 16383
+#define DFP_PEDAL_MIN 0
+#define DFP_PEDAL_MAX 255
+
 #define to_hid_device(pdev) container_of(pdev, struct hid_device, dev)
 
 static void hid_lg4ff_set_range_dfp(struct hid_device *hid, u16 range);
@@ -593,6 +598,18 @@  int lg4ff_init(struct hid_device *hid)
 		return error;
 	dbg_hid("sysfs interface created\n");
 
+	/* Set default axes parameters */
+	switch (lg4ff_devices[i].product_id) {
+	case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
+		dbg_hid("Setting axes parameters for Driving Force Pro\n");
+		input_set_abs_params(dev, ABS_X, DFP_X_MIN, DFP_X_MAX, 0, 0);
+		input_set_abs_params(dev, ABS_Y, DFP_PEDAL_MIN, DFP_PEDAL_MAX, 0, 0);
+		input_set_abs_params(dev, ABS_RZ, DFP_PEDAL_MIN, DFP_PEDAL_MAX, 0, 0);
+		break;
+	default:
+		break;
+	}
+
 	/* Set the maximum range to start with */
 	entry->range = entry->max_range;
 	if (entry->set_range != NULL)