https://bugzilla.kernel.org/show_bug.cgi?id=215167
--- Comment #48 from Oleksandr Natalenko ([email protected]) ---
(In reply to Chaim Eliyah from comment #46)
> | Reloading `btusb` module several times makes it working.
>
> Any specific steps for this? I have not been able to get it to work. Issue
> persists despite reboots incl. hard power off/on. This happened suddenly.
No specific steps, just `modprobe -r btusb && modprobe btusb`.
I'm not facing the issue regularly, for me it happened only once recently after
I powered off the system completely for a couple of days. The issue does not
occur across reboots or suspends/resumes. It also doesn't occur after each
power off (at least, so far).
I've adopted the patch from c#38 like below just to be on the safe side:
```
commit 2875e3ab82d1777a06a356167c52a745827b2ad1
Author: Oleksandr Natalenko <[email protected]>
Date: Sun Feb 26 00:17:09 2023 +0100
Bluetooth: btusb: work around command 0xfc05 tx timeout
Instead of realoding `btusb` module to tackle this:
```
Bluetooth: hci0: command 0xfc05 tx timeout
Bluetooth: hci0: Reading Intel version command failed (-110)
```
increase `btusb_qca_cmd_timeout()` sleep duration while hoping
for the best.
This looks like an ugly hack.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=215167
Signed-off-by: Oleksandr Natalenko <[email protected]>
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 2ad4efdd9e40..7aff6c468c0d 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -901,7 +901,7 @@ static void btusb_qca_cmd_timeout(struct hci_dev *hdev)
}
gpiod_set_value_cansleep(reset_gpio, 0);
- msleep(200);
+ usleep_range(USEC_PER_SEC / 2, USEC_PER_SEC);
gpiod_set_value_cansleep(reset_gpio, 1);
return;
```
Let me know if you are able to test it.
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Dear Submitter,
Thank you for submitting the patches to the linux bluetooth mailing list.
While preparing the CI tests, the patches you submitted couldn't be applied to the current HEAD of the repository.
----- Output -----
error: patch failed: drivers/bluetooth/btusb.c:901
error: drivers/bluetooth/btusb.c: patch does not apply
hint: Use 'git am --show-current-patch' to see the failed patch
Please resolve the issue and submit the patches again.
---
Regards,
Linux Bluetooth