Kimplul
T-GT II - Enchantments
Hello again,
I would like to request little T-GT2 enchantment. Following controls highlighted on picture are not functional and not detected by oversteer.
They are not absolutely crucial but 'nice to have'. Let me know what you need and I will do my best to provide.
Presumably the T-GT II has an rdesc that's different from the one(s) in https://github.com/Kimplul/hid-tmff2/blob/a9312ead5720922e1c06b541ea48b6db3f289d36/src/tmt300rs/hid-tmt300rs.c#L87, so first order of business would probably be to try and get hold of it. With the driver uninstalled (or disabled or whatever, as long as it doesn't get loaded) you should be able to query the raw rdesc from the wheel with
cat /sys/kernel/debug/hid/XXXX\:VID\:PID.YYYY/rdesc
I believe XXXX = 044f and YYYY = b66e but you might have to dig around a bit (there are other ways to get the rdesc, for example capturing packets with WireShark but I think the above method is probably the easiest).
With a 'proper' rdesc, we would then need to figure out when we're talking to a T-GT II versus a regular T300. I would expect that information to be available via t300rs_get_attachment(), you might want to temporarily add in some print statements here (again, there are other ways to get the information like sending raw USB packets from the command line but I think the 'hack' above is probably easiest).
Hi Kimplul, These seem mismatch.
[root@xgaming ~]# grep -A 20 "static u8 t300rs_rdesc_nrm_fixed" /usr/src/hid-tmff2-0.82/src/tmt300rs/hid-tmt300rs.c
static u8 t300rs_rdesc_nrm_fixed[] = {
0x05, 0x01, /* Usage page (Generic Desktop) */
0x09, 0x04, /* Usage (Joystick) */
0xa1, 0x01, /* Collection (Application) */
0x09, 0x01, /* Usage (Pointer) */
0xa1, 0x00, /* Collection (Physical) */
0x85, 0x07, /* Report ID (7) */
0x09, 0x30, /* Usage (X) */
0x15, 0x00, /* Logical minimum (0) */
0x27, 0xff, 0xff, 0x00, 0x00, /* Logical maximum (65535) */
0x35, 0x00, /* Physical minimum (0) */
0x47, 0xff, 0xff, 0x00, 0x00, /* Physical maximum (65535) */
0x75, 0x10, /* Report size (16) */
0x95, 0x01, /* Report count (1) */
0x81, 0x02, /* Input (Variable, Absolute) */
0x09, 0x35, /* Usage (Rz) (Brake) */
0x26, 0xff, 0x03, /* Logical maximum (1023) */
0x46, 0xff, 0x03, /* Physical maximum (1023) */
0x81, 0x02, /* Input (Variable, Absolute) */
0x09, 0x32, /* Usage (Z) (Gas) */
0x81, 0x02, /* Input (Variable, Absolute) */
I dunno how to do pull request but maybe better if you check these entries first before I try and compile driver again because I have no clue what the heck I am doing.
0x09, 0x40, /* Usage (Knob 1 Rotation) */
0x15, 0x00, /* Logical minimum (0) */
0x26, 0xff, 0x03, /* Logical maximum (1023) */
0x75, 0x10, /* Report size (16) */
0x95, 0x01, /* Report count (1) */
0x81, 0x02, /* Input (Variable, Absolute) */
0x09, 0x41, /* Usage (Knob 1 Button Press) */
0x15, 0x00, /* Logical minimum (0) */
0x25, 0x01, /* Logical maximum (1) */
0x75, 0x01, /* Report size (1) */
0x95, 0x01, /* Report count (1) */
0x81, 0x02, /* Input (Variable, Absolute) */
0x09, 0x42, /* Usage (Knob 2 Rotation) */
0x15, 0x00, /* Logical minimum (0) */
0x26, 0xff, 0x03, /* Logical maximum (1023) */
0x75, 0x10, /* Report size (16) */
0x95, 0x01, /* Report count (1) */
0x81, 0x02, /* Input (Variable, Absolute) */
0x09, 0x43, /* Usage (Knob 2 Button Press) */
0x15, 0x00, /* Logical minimum (0) */
0x25, 0x01, /* Logical maximum (1) */
0x75, 0x01, /* Report size (1) */
0x95, 0x01, /* Report count (1) */
0x81, 0x02, /* Input (Variable, Absolute) */
0x09, 0x44, /* Usage (Knob 3 Rotation) */
0x15, 0x00, /* Logical minimum (0) */
0x26, 0xff, 0x03, /* Logical maximum (1023) */
0x75, 0x10, /* Report size (16) */
0x95, 0x01, /* Report count (1) */
0x81, 0x02, /* Input (Variable, Absolute) */
0x09, 0x45, /* Usage (Knob 3 Button Press) */
0x15, 0x00, /* Logical minimum (0) */
0x25, 0x01, /* Logical maximum (1) */
0x75, 0x01, /* Report size (1) */
0x95, 0x01, /* Report count (1) */
0x81, 0x02, /* Input (Variable, Absolute) */
0x09, 0x46, /* Usage (Knob 4 Rotation) */
0x15, 0x00, /* Logical minimum (0) */
0x26, 0xff, 0x03, /* Logical maximum (1023) */
0x75, 0x10, /* Report size (16) */
0x95, 0x01, /* Report count (1) */
0x81, 0x02, /* Input (Variable, Absolute) */
0x09, 0x47, /* Usage (Knob 4 Button Press) */
0x15, 0x00, /* Logical minimum (0) */
0x25, 0x01, /* Logical maximum (1) */
0x75, 0x01, /* Report size (1) */
0x95, 0x01, /* Report count (1) */
0x81, 0x02, /* Input (Variable, Absolute) */
0x09, 0x50, /* Usage (Joystick 1 Mouse) */
0x15, 0x00, /* Logical minimum (0) */
0x25, 0x01, /* Logical maximum (1) */
0x75, 0x01, /* Report size (1) */
0x95, 0x01, /* Report count (1) */
0x81, 0x02, /* Input (Variable, Absolute) */
0x09, 0x51, /* Usage (Joystick 2) */
0x15, 0x00, /* Logical minimum (0) */
0x25, 0x01, /* Logical maximum (1) */
0x75, 0x01, /* Report size (1) */
0x95, 0x01, /* Report count (1) */
0x81, 0x02, /* Input (Variable, Absolute) */
It seems knob 1,2 and joysticks are already mapped but oversteer (or games) don't detect the input.
Sorry, I got a bit sick and forgot about this. Looks like you got the rdesc of the wheel, which is great, and it does look like there are some differences to the T300, which is what we were expecting. Next up we should probably check the wheel response to querying its model, something like this patch:
diff --git a/src/tmt300rs/hid-tmt300rs.c b/src/tmt300rs/hid-tmt300rs.c
index f83e3af..153d8be 100644
--- a/src/tmt300rs/hid-tmt300rs.c
+++ b/src/tmt300rs/hid-tmt300rs.c
@@ -1407,6 +1407,10 @@ static int t300rs_get_attachment(struct t300rs_device_entry *t300rs)
goto out;
}
+ hid_info(t300rs->hdev, "attachment: %x model: %x\n",
+ response->a.attachment,
+ response->a.model);
+
if (response->type == cpu_to_le16(0x49)) {
attachment = response->a.attachment;
} else if (response->type == cpu_to_le16(0x47)) {
If we're lucky the wheel reports its attachment and/or model in such a way that we can differentiate it from a regular T300. You can find the values for the currently known attachments here: https://github.com/Kimplul/hid-tmff2/blob/a9312ead5720922e1c06b541ea48b6db3f289d36/src/tmt300rs/hid-tmt300rs.c#L10
_pkgbase=hid-tmff2
pkgname="${_pkgbase}-dkms"
pkgver=0.8
pkgrel=1
pkgdesc="Linux kernel module for Thrustmaster T300RS (DKMS)"
arch=('x86_64')
url="https://github.com/Kimplul/${_pkgbase}"
license=('GPL-3.0')
depends=('dkms')
conflicts=("${_pkgbase}")
# install=${pkgname}.install
source=("git+${url}")
#md5sums=(use 'updpkgsums')
md5sums=(SKIP)
prepare() {
cd ${_pkgbase}
git submodule update --init --recursive
# Apply the patch
patch -p1 << 'EOF'
diff --git a/src/tmt300rs/hid-tmt300rs.c b/src/tmt300rs/hid-tmt300rs.c
index f83e3af..153d8be 100644
--- a/src/tmt300rs/hid-tmt300rs.c
+++ b/src/tmt300rs/hid-tmt300rs.c
@@ -1407,6 +1407,10 @@ static int t300rs_get_attachment(struct t300rs_device_entry *t300rs)
goto out;
}
+ hid_info(t300rs->hdev, "attachment: %x model: %x\n",
+ response->a.attachment,
+ response->a.model);
+
if (response->type == cpu_to_le16(0x49)) {
attachment = response->a.attachment;
} else if (response->type == cpu_to_le16(0x47)) {
EOF
}
package() {
# install -Dm644 ${_pkgbase}/dkms.conf "${pkgdir}"/usr/src/${_pkgbase}-${pkgver}/dkms.conf
install -Dm644 ${_pkgbase}/dkms/dkms.conf "${pkgdir}"/usr/src/${_pkgbase}-${pkgver}/dkms.conf
# Set name and version
sed -e "s/@_PKGBASE@/${_pkgbase}/" \
-e "s/@PKGVER@/${pkgver}/" \
-i "${pkgdir}"/usr/src/${_pkgbase}-${pkgver}/dkms.conf
# Copy sources (including Makefile)
cp -r ${_pkgbase}/* "${pkgdir}"/usr/src/${_pkgbase}-${pkgver}/
}
No change. nobs and buttons don't respond.
No change. nobs and buttons don't respond.
The patch I mentioned isn't mean to fix anything quite yet, it's just to print out to dmesg some values that the wheel returns for a specific USB request. I'm hoping that we can detect which wheel we're talking to based on these values, so we can select the correct rdesc and that way get the buttons working.
So for now, please check dmesg and try and find the attachment/model values.
~/hid-tmff2-dkms master*
❯ sudo dmesg | grep "attachment"
[sudo] smx-käyttäjän salasana:
[ 8.984894] tmff2 0003:044F:B66D.0002: attachment: 8 model: 5
❯ sudo usbhid-dump -d 044f:b66d
003:004:000:DESCRIPTOR 1743011314.003938
05 01 09 05 A1 01 85 01 09 30 09 31 09 32 09 35
15 00 26 FF 00 75 08 95 04 81 02 09 39 15 00 25
07 35 00 46 3B 01 65 14 75 04 95 01 81 42 65 00
05 09 19 01 29 0E 15 00 25 01 75 01 95 0E 81 02
06 00 FF 09 20 75 06 95 01 81 02 05 01 09 33 09
34 15 00 26 FF 00 75 08 95 02 81 02 06 00 FF 09
21 95 36 81 02 85 05 09 22 95 1F 91 02 85 03 0A
21 27 95 2F B1 02 C0 06 F0 FF 09 40 A1 01 85 F0
09 47 95 3F B1 02 85 F1 09 48 95 3F B1 02 85 F2
09 49 95 0F B1 02 85 F3 0A 01 47 95 07 B1 02 C0
[ 8.984894] tmff2 0003:044F:B66D.0002: attachment: 8 model: 5
Seems promising, an attachment ID of 8 is different from the two other known IDs, so we should be able to check against this. I'll look into modifying t300rs_wheel_fixup (or see if there's a better way to set the rdesc). There also also a few other wheels that use the T248 product ID, and whatever solution we end up with might benefit those wheels as well, which is nice.
[sudo] smx-käyttäjän salasana:
Suomi-jumpscare :)
Do you still need something else or can I 'safely' return my AUR package and wait update? :)
This should be everything I need for right now. I'll ask for some testing in the (hopefully) near future, though.
I will remain with raw version until further notice then and again, Thank You Mate! :)
Alright, hello again. Sorry, took a lot longer to get to this than I was anticipating. I pushed an initial commit to the tgtII branch that has the modifications to the rdesc, which should hopefully allow you to test if all the buttons show up properly.
It's not quite a finished thing, to start with I just hard-coded the rdesc so the driver thinks all devices with the T248 ID are T-GT II's, if the rdesc end up working I'll start working on the more generic 'dispatch' mechanism I was talking about earlier, but for now I just want to know if all the buttons work.
Hey,
I was forced to move back to windows temporarily but I'll test it with "live-cd" asap and get back to you.
Appreciated 👍🏻 Kiitos.
Bumping this, T-GT II knobs still not working. The two thumbsticks don't work either but those never worked on Windows anyway.
