Please refer to previous revisions if you know what to do.
The patch proposed was merged into kernel in 5.8 release, but no longer working as of linux 5.11
I updated to linux 5.17, and my dongle is still not working :(( dmesg report:
[ 39.167468] usb 1-4: new full-speed USB device number 4 using xhci_hcd [ 39.316166] usb 1-4: Duplicate descriptor for config 1 interface 1 altsetting 5, skipping [ 39.316488] usb 1-4: New USB device found, idVendor=0a12, idProduct=0001, bcdDevice=88.91 [ 39.316491] usb 1-4: New USB device strings: Mfr=0, Product=2, SerialNumber=0 [ 39.316493] usb 1-4: Product: USB2.0-BT [ 39.344509] Bluetooth: Core ver 2.22 [ 39.344536] NET: Registered PF_BLUETOOTH protocol family [ 39.344551] Bluetooth: HCI device and connection manager initialized [ 39.344554] Bluetooth: HCI socket layer initialized [ 39.344557] Bluetooth: L2CAP socket layer initialized [ 39.344560] Bluetooth: SCO socket layer initialized [ 39.356119] usbcore: registered new interface driver btusb [ 39.356687] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once... [ 39.356690] Bluetooth: hci0: CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround [ 39.396406] Bluetooth: BNEP (Ethernet Emulation) ver 1.3 [ 39.396409] Bluetooth: BNEP filters: protocol multicast [ 39.396412] Bluetooth: BNEP socket layer initialized [ 42.119083] Bluetooth: hci0: command 0x0c01 tx timeout [ 42.119314] Bluetooth: hci0: Opcode 0x c01 failed: -110
I plug another dongle which has exactly the same housing (CSR 4.0 on both), and it works. dmesg report of second dongle:
[ 98.435150] usb 1-4: USB disconnect, device number 4 [ 103.387316] usb 1-4: new full-speed USB device number 5 using xhci_hcd [ 103.536318] usb 1-4: Duplicate descriptor for config 1 interface 1 altsetting 5, skipping [ 103.536759] usb 1-4: New USB device found, idVendor=0a12, idProduct=0001, bcdDevice=88.91 [ 103.536772] usb 1-4: New USB device strings: Mfr=0, Product=2, SerialNumber=0 [ 103.536778] usb 1-4: Product: USB2.0-BT
Linux 5.17 still needs the v4 patches to be applied manually. You should use Linux 5.17.1.
@huynp1999 If you read the conversation above with @LevitatingBusinessMan you will see that having the exact enclosure does not guarantee anything. The photos show completely different PCBs and chips, counterfeit vendors mix and mash. Please take a look at that and share the same kind of photos and information. It really helps a lot to identify the different dongle families, finding enough patterns to fix them in a generic fashion.
@MikuChan03 I have also sent four or five trivial patches to the input subsystem since early 2021 and unfortunately no maintainers from that team have reviewed or responded, even after being Acked
or Reviewed
by others. Even after resending them, as Hans says. I feel like they need more manpower, there's an absolute backlog of submissions going on there that are being bottlenecked at the review stage.
Linux 5.17 still needs the v4 patches to be applied manually. You should use Linux 5.17.1.
yes, I'm using 5.17.1
@Swyter oh ok, thank you for your support. I will take a look inside these dongles
You guys are right, I didn't notice the massive amount of patches pilling up on them. I'll lay back a little and mention it in time.
Have a good one!
@huynp1999 First one you showed (that doesn't work) looks a lot like mine, which I also couldn't get to work.
Yeah, it's the same PCB revision and everything. Good to have better pics and the chip vendor name. So it was a Barrot Technology one masking as a CSR, and sold as a Realtek. Go figure.
Does the second one that works get detected as a clone? I wonder if the HCI revision and LMP subversion numbers match.
I'm checking with hciconfig -a
and dmesg
. The first one don't show anything about HCI and LMP
Result of the second one that works:
HCI Version: 4.0 (0x6) Revision: 0x22bb
LMP Version: 4.0 (0x6) Subversion: 0x22bb
Anyone who needs a patch for linux 5.15.x LTS series, can use this patch. Credit goes to @Swyter for creating the original patches.
I just combined them and made it compatible with linux 5.15.x LTS.
It has been tested on linux 5.15.27.
Just copy and save it as a .diff file and apply it on the kernel source.
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index ac90392cc..39b189b16 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -1942,6 +1942,8 @@ static int btusb_setup_csr(struct hci_dev *hdev)
*/
set_bit(HCI_QUIRK_BROKEN_STORED_LINK_KEY, &hdev->quirks);
set_bit(HCI_QUIRK_BROKEN_ERR_DATA_REPORTING, &hdev->quirks);
+ set_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks);
+ set_bit(HCI_QUIRK_NO_SUSPEND_NOTIFIER, &hdev->quirks);
/* Clear the reset quirk since this is not an actual
* early Bluetooth 1.1 device from CSR.
@@ -1952,16 +1954,16 @@ static int btusb_setup_csr(struct hci_dev *hdev)
/*
* Special workaround for these BT 4.0 chip clones, and potentially more:
*
- * - 0x0134: a Barrot 8041a02 (HCI rev: 0x1012 sub: 0x0810)
+ * - 0x0134: a Barrot 8041a02 (HCI rev: 0x0810 sub: 0x1012)
* - 0x7558: IC markings FR3191AHAL 749H15143 (HCI rev/sub-version: 0x0709)
*
* These controllers are really messed-up.
*
* 1. Their bulk RX endpoint will never report any data unless
- * the device was suspended at least once (yes, really).
+ * the device was suspended at least once (yes, really).
* 2. They will not wakeup when autosuspended and receiving data
- * on their bulk RX endpoint from e.g. a keyboard or mouse
- * (IOW remote-wakeup support is broken for the bulk endpoint).
+ * on their bulk RX endpoint from e.g. a keyboard or mouse
+ * (IOW remote-wakeup support is broken for the bulk endpoint).
*
* To fix 1. enable runtime-suspend, force-suspend the
* HCI and then wake-it up by disabling runtime-suspend.
@@ -1981,7 +1983,7 @@ static int btusb_setup_csr(struct hci_dev *hdev)
if (ret >= 0)
msleep(200);
else
- bt_dev_err(hdev, "CSR: Failed to suspend the device for our Barrot 8041a02 receive-issue workaround");
+ bt_dev_warn(hdev, "CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround");
pm_runtime_forbid(&data->udev->dev);
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 9ce46cb85..41f0026b6 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -255,6 +255,16 @@ enum {
* during the hdev->setup vendor callback.
*/
HCI_QUIRK_BROKEN_READ_TRANSMIT_POWER,
+
+ /* When this quirk is set, HCI_OP_SET_EVENT_FLT requests with
+ * HCI_FLT_CLEAR_ALL are ignored and event filtering is
+ * completely avoided. A subset of the CSR controller
+ * clones struggle with this and instantly lock up.
+ *
+ * Note that devices using this must (separately) disable
+ * runtime suspend, because event filtering takes place there.
+ */
+ HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL,
};
/* HCI device flags */
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 53f1b0801..4c7f748b8 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -271,6 +271,7 @@ static int hci_init1_req(struct hci_request *req, unsigned long opt)
static void bredr_setup(struct hci_request *req)
{
+ struct hci_dev *hdev = req->hdev;
__le16 param;
__u8 flt_type;
@@ -292,9 +293,14 @@ static void bredr_setup(struct hci_request *req)
/* Read Current IAC LAP */
hci_req_add(req, HCI_OP_READ_CURRENT_IAC_LAP, 0, NULL);
- /* Clear Event Filters */
- flt_type = HCI_FLT_CLEAR_ALL;
- hci_req_add(req, HCI_OP_SET_EVENT_FLT, 1, &flt_type);
+ /* Clear Event Filters; some fake CSR controllers lock up after setting
+ * this type of filter, so avoid sending the request altogether.
+ */
+ if (!test_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks))
+ {
+ flt_type = HCI_FLT_CLEAR_ALL;
+ hci_req_add(req, HCI_OP_SET_EVENT_FLT, 1, &flt_type);
+ }
/* Connection accept timeout ~20 secs */
param = cpu_to_le16(0x7d00);
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
index 1d34d330a..35308de87 100644
--- a/net/bluetooth/hci_request.c
+++ b/net/bluetooth/hci_request.c
@@ -1156,11 +1156,15 @@ static bool adv_instance_is_scannable(struct hci_dev *hdev, u8 instance)
static void hci_req_clear_event_filter(struct hci_request *req)
{
struct hci_cp_set_event_filter f;
+ struct hci_dev *hdev = req->hdev;
+
+ if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
+ return;
- if (!hci_dev_test_flag(req->hdev, HCI_BREDR_ENABLED))
+ if (test_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks))
return;
- if (hci_dev_test_flag(req->hdev, HCI_EVENT_FILTER_CONFIGURED)) {
+ if (hci_dev_test_flag(hdev, HCI_EVENT_FILTER_CONFIGURED)) {
memset(&f, 0, sizeof(f));
f.flt_type = HCI_FLT_CLEAR_ALL;
hci_req_add(req, HCI_OP_SET_EVENT_FLT, 1, &f);
@@ -1169,15 +1173,18 @@ static void hci_req_clear_event_filter(struct hci_request *req)
static void hci_req_set_event_filter(struct hci_request *req)
{
+ struct hci_dev *hdev = req->hdev;
struct bdaddr_list_with_flags *b;
struct hci_cp_set_event_filter f;
- struct hci_dev *hdev = req->hdev;
u8 scan = SCAN_DISABLED;
bool scanning = test_bit(HCI_PSCAN, &hdev->flags);
if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
return;
+ if (test_bit(HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL, &hdev->quirks))
+ return;
+
/* Always clear event filter when starting */
hci_req_clear_event_filter(req);
/drivers/bluetooth/btusb.c
Hi, can you please tell me how to apply this patch?
regards,
Paulo
Hello! I use kernel 5.17.5 but this adapter doesn't working. What's to do?
/drivers/bluetooth/btusb.c
Hi, can you please tell me how to apply this patch?
regards, Paulo
Copy and save the patch as a .diff
file.
Get the latest linux 5.15.36 LTS source, unpack and cd
to it.
apply the patch:
patch -p1 < /path/to/the/patch.diff
start compiling and then use the new kernel.
/драйверы/bluetooth/btusb.c
Привет, не могли бы вы сказать мне, как применить этот патч?
с уважением, ПаулоСкопируйте и сохраните исправление в виде файла. Получите последнюю версию исходного кода linux 5.15.36 LTS, распакуйте и к нему. применить патч:
.diff``cd
patch -p1 < /path/to/the/patch.diff
начните компиляцию, а затем используйте новое ядро.
Okay, where is patch?
/драйверы/bluetooth/btusb.c
Привет, не могли бы вы сказать мне, как применить этот патч?
с уважением, ПаулоСкопируйте и сохраните исправление в виде файла. Получите последнюю версию исходного кода linux 5.15.36 LTS, распакуйте и к нему. применить патч:
.diff
cd ``patch -p1 < /path/to/the/patch.diff
начните компиляцию, а затем используйте новое ядро.Okay, where is patch?
It's right up there in my earlier commets, can't you see?
Here's the comment's link
/драйверы/bluetooth/btusb.c
Привет, не могли бы вы сказать мне, как применить этот патч? с уважением, Пауло
Скопируйте и сохраните исправление в виде файла. Получите последнюю версию исходного кода linux 5.15.36 LTS, распакуйте и к нему. применить патч:cd '' начните компиляцию, а затем используйте новое ядро.
.diff``patch -p1 < /path/to/the/patch.diff
Хорошо, где патч?
Это прямо там, в моих ранних комметах, не так ли? Вот ссылка на комментарий
Thank you!
I'm in the same boat with this little guy, tried everything listed here, also tried with the patches from a known bug listed on the arch linux wiki bluetooth page but couldn't even compile the kernel with those patches (https://bugzilla.kernel.org/show_bug.cgi?id=60824) here is some info if someone can help me out:
here are some outputs from my tries:
lsusb
Bus 001 Device 024: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
btmon
Bluetooth monitor ver 5.64
= Note: Linux version 5.15.32-1-MANJARO (x86_64) 0.181266
= Note: Bluetooth subsystem version 2.22 0.181268
= New Index: 00:00:00:00:00:00 (Primary,USB,hci1) [hci1] 0.181268
= New Index: 48:E2:44:F6:F3:F4 (Primary,USB,hci0) [hci0] 0.181269 # this one (wifi/tb card) is powered off
@ MGMT Open: bluetoothd (privileged) version 1.21
hciconfig -a
hci1: Type: Primary Bus: USB
BD Address: 00:00:00:00:00:00 ACL MTU: 0:0 SCO MTU: 0:0
DOWN
RX bytes:14 acl:0 sco:0 events:1 errors:0
TX bytes:3 acl:0 sco:0 commands:2 errors:1
Features: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
Packet type: DM1 DH1 HV1
Link policy:
Link mode: PERIPHERAL ACCEPT
hci0: Type: Primary Bus: USB
BD Address: 48:E2:44:F6:F3:F4 ACL MTU: 1021:8 SCO MTU: 64:1
DOWN
mhwd-kernel -li
Currently running: 5.15.32-1-MANJARO (linux515)
sudo hciconfig hci1 up
Can't init device hci1: Connection timed out (110)
dmesg | grep Bluetooth
[68300.546822] Bluetooth: hci1: CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...
[68305.731582] Bluetooth: hci1: CSR: Failed to suspend the device for our Barrot 8041a02 receive-issue workaround
[68310.851263] Bluetooth: hci1: setting interface failed (110)
mhwd-kernel -li
Currently running: 5.15.32-1-MANJARO (linux515)
sudo hciconfig hci0 up
Can't init device hci0: Connection timed out (110)
dmesg | grep Bluetooth
[ 4.701306] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...
[ 9.753582] Bluetooth: hci0: CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround
[ 14.873783] Bluetooth: hci0: setting interface failed (110)
mhwd-kernel -li
Currently running: 5.17.1-3-MANJARO (linux517)
hciconfig hci0 up
Can't init device hci0: Broken pipe (32)
dmesg | grep Bluetooth
[ 5.017199] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...
[ 10.176336] Bluetooth: hci0: CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround
[ 12.305840] Bluetooth: hci0: Opcode 0x c03 failed: -110
[ 258.608877] Bluetooth: hci0: CSR: Local version failed (-32)
mhwd-kernel -li
Currently running: 5.17.7-1-MANJARO (linux517)
hciconfig hci0 up
Can't init device hci0: Broken pipe (32)
dmesg | grep Bluetooth
[ 4.579313] Bluetooth: Core ver 2.22
[ 4.579378] Bluetooth: HCI device and connection manager initialized
[ 4.579382] Bluetooth: HCI socket layer initialized
[ 4.579384] Bluetooth: L2CAP socket layer initialized
[ 4.579388] Bluetooth: SCO socket layer initialized
[ 4.794437] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...
[ 4.941822] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 4.941826] Bluetooth: BNEP filters: protocol multicast
[ 4.941831] Bluetooth: BNEP socket layer initialized
[ 9.959543] Bluetooth: hci0: CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround
[ 12.092630] Bluetooth: hci0: Opcode 0x c03 failed: -110
Sorry, I have to remove my contact info from gist.
My initial purpose was to let people contact me if anybody finds some new fix/patch.
Everything I got is a ton of spam like "help me please to fix bluetooth dongle on linux [version]".
Have a good day, yall!
Hey :)
Is there any ETA for when the current working patch will be merged into the main kernel? I am currently on kernel version 5.18, and it does not work.. Alternatively is there anyone adding the patch to the AUR?
Hey :) Is there any ETA for when the current working patch will be merged into the main kernel? I am currently on kernel version 5.18, and it does not work.. Alternatively is there anyone adding the patch to the AUR?
There's no working patch at the moment.
Well, it's fixed for all the dongles I have and the ones I bought just to fix more Linux kernel issues. Everything I submitted has been merged.
I can't really justify buying a sack of random AliExpress dongles and wait months for them to arrive and cross my fingers so that the seller is kind enough to not swap the advertised PCB (which happened two months ago, getting specific controllers is crazy hard) just to submit more patches. I bought one of the Barrot ones that still don't work and ended up with a duplicate that worked out of the box already. Super great.
--
I'm just a random Linux user doing it as a hobby after arriving at the same place, there is no ETA. Be the change you want to see in the world, if everyone did what I did with the hardware they own everything would be fixed.
Just make the jump and learn, even if it's through hacks and experimentation it will help getting to the correct solution if you stick around. Often you can fix a dongle by commenting out something or submitting an one-liner.
Thank you for your work on this, @Swyter. You helped inspire me to compile the kernel for the first time and you got my dongle working. I really appreciate the time you took developing the patches and hanging out here answering questions.
I compilied kernel with this patch, but problem with Bluetooth didn't fixed.
System: Fedora Linux.
Compilied version: 5.15.70
Have installed 5.17.1-051701-generic
on Ubuntu 22.04.1
and still have the problem
lsusb: Bus 005 Device 002: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
Have tried with 6.0.7-060007-generic
and still same output
[ 3.776546] Bluetooth: Core ver 2.22
[ 3.776576] NET: Registered PF_BLUETOOTH protocol family
[ 3.776577] Bluetooth: HCI device and connection manager initialized
[ 3.776582] Bluetooth: HCI socket layer initialized
[ 3.776585] Bluetooth: L2CAP socket layer initialized
[ 3.776589] Bluetooth: SCO socket layer initialized
[ 3.859412] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...
[ 4.406985] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 4.406988] Bluetooth: BNEP filters: protocol multicast
[ 4.406992] Bluetooth: BNEP socket layer initialized
[ 9.019046] Bluetooth: hci0: CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround
[ 11.032916] Bluetooth: hci0: Opcode 0x c03 failed: -110
Did somebody solve this?
Got the same problems and outputs on Ubuntu 22.04.1 LTS.
My dongle CSR 8510 A10 works fine on windows 7 on Microsoft generic driver.
Tried kernels 5.15.0 and 5.19.16.
I`m running Fedora 37 with kernel 6.0.7-301, unmodified.
Also getting errors, it used to work just fine on Fedora 35 and on older kernels in other distros.
[ 15.034386] Bluetooth: Core ver 2.22
[ 15.034400] Bluetooth: HCI device and connection manager initialized
[ 15.034402] Bluetooth: HCI socket layer initialized
[ 15.034404] Bluetooth: L2CAP socket layer initialized
[ 15.034407] Bluetooth: SCO socket layer initialized
[ 15.825231] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds and force-suspending once...
[ 15.825235] Bluetooth: hci0: CSR: Couldn't suspend the device for our Barrot 8041a02 receive-issue workaround
[ 15.825238] Bluetooth: hci0: HCI Delete Stored Link Key command is advertised, but not supported.
[ 15.825239] Bluetooth: hci0: HCI Set Event Filter command not supported.
[ 17.948972] Bluetooth: hci0: command 0x0c5a tx timeout
[ 17.949005] Bluetooth: hci0: Opcode 0x c5a failed: -110
[ 20.711035] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 20.711037] Bluetooth: BNEP filters: protocol multicast
[ 20.711041] Bluetooth: BNEP socket layer initialized
See here: https://bugzilla.kernel.org/show_bug.cgi?id=60824#c242
Submitted a patch series here: https://bugzilla.kernel.org/show_bug.cgi?id=60824#c243
There was another simultaneous conversation in the mailing list here: https://linuxlists.cc/l/15/linux-bluetooth/t/4663230/(regression)_cambridge_silicon_radio,_ltd_bluetooth_dongle_unusable_again_with_kernel_6.0#post4683596
In the end, Luiz merged 2 out of the 3 patches upstream. There's radio silence about the third one.
Subscribe to the Bugzilla ticket if you want to stay up to date.
The patch series talked above is currently empty: https://patchwork.kernel.org/project/bluetooth/list/?series=690177&state
I'd patch my own kernel if possible. This problem has kept me out of Linux entirely.
I updated to linux 5.17, and my dongle is still not working :((
dmesg report:
I plug another dongle which has exactly the same cover (CSR 4.0 on both), and it works.
dmesg report of second dongle: