From ab71fe85ea80dc912c5f5871b7036e8da6df33b5 Mon Sep 17 00:00:00 2001
From: kimi <kimi.h.kuparinen@gmail.com>
Date: Thu, 9 Jul 2020 14:58:12 -0400
Subject: I borked the buttons, hopefully fixed

---
 hid-tmt300rs.c | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 hid-tmt300rs.h |  2 ++
 2 files changed, 48 insertions(+)

diff --git a/hid-tmt300rs.c b/hid-tmt300rs.c
index 4173601..3d678c8 100644
--- a/hid-tmt300rs.c
+++ b/hid-tmt300rs.c
@@ -869,6 +869,7 @@ int t300rs_init(struct hid_device *hdev, const signed short *ff_bits){
         goto out;
     }
 
+
     hrtimer_init(&t300rs->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
     t300rs->hrtimer.function = t300rs_timer;
 
@@ -887,6 +888,48 @@ err:
 
 }
 
+/* for some reason this specific command must be sent before hid_hw_start. Odd.
+ * */
+static int t300rs_preinit(struct hid_device *hdev){
+	int ret;
+	u8 *setup_packet;
+	
+    /* this is sort of unnecessary, as later on I compile the interfaces etc
+     * into one struct, but for now this will do
+     * */
+    struct device *dev = &hdev->dev;
+	struct usb_interface *usbif = to_usb_interface(dev->parent);
+	struct usb_device *usbdev = interface_to_usbdev(usbif);
+	struct urb *urb;
+
+	setup_packet = kmalloc(8, GFP_ATOMIC);
+
+	memcpy(setup_packet, t300rs_ctrl_out, ARRAY_SIZE(t300rs_ctrl_out));
+	urb = usb_alloc_urb(0, GFP_ATOMIC);
+	
+    usb_fill_control_urb(urb,
+			usbdev,
+			usb_sndctrlpipe(usbdev, 0),
+			setup_packet,
+			NULL,
+			0,
+            /* technically speaking this isn't an interrupt usb, but hey, this
+             * works.
+             * */
+			t300rs_int_callback,
+			hdev);
+
+	ret = usb_submit_urb(urb, GFP_ATOMIC);
+	if(ret != 0){
+		hid_err(hdev, "Failed sending ctrl out with ERRNO: %i", ret);
+		goto error;
+	}
+
+error:
+	kfree(setup_packet);
+	return ret;
+}
+
 static int t300rs_probe(struct hid_device *hdev, const struct hid_device_id *id){
     int ret;
     struct t300rs_data *drv_data;
@@ -910,6 +953,9 @@ static int t300rs_probe(struct hid_device *hdev, const struct hid_device_id *id)
         goto err;
     }
 
+    /* lord have mercy */
+    t300rs_preinit(hdev);
+
     ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
     if(ret){
         hid_err(hdev, "hw start failed\n");
diff --git a/hid-tmt300rs.h b/hid-tmt300rs.h
index 3ac4336..bec73eb 100644
--- a/hid-tmt300rs.h
+++ b/hid-tmt300rs.h
@@ -81,3 +81,5 @@ static u8 spring_values[] = {
 static u8 damper_values[] = {
     0xfc, 0x7f, 0xfc, 0x7f, 0xfe, 0xff, 0xfe, 0xff, 0xfe, 0xff, 0xfe, 0xff, 0xfc, 0x7f, 0xfc, 0x7f, 0x07
 };
+
+static u8 t300rs_ctrl_out[] = { 0x41, 0x48, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, };
-- 
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