[PW_SID:917446] [v2] Bluetooth: btusb: add sysfs attribute to control USB alt setting

[BluezTestBot]

When a Bluetooth raw socket is open, the HCI event related to SCO
connection changes are not dispatched to the hci_event module, and
the underlying Bluetooth controller's USB Interface 1 will not be
updated accordingly.

This patch adds isoc_alt sysfs attribute, allowing user space
to update the alternate setting of the USB interface alternate
setting as needed.

Signed-off-by: Ying Hsu [email protected]

This commit has been tested on a chromebook with AX211.

Changes in v2:

• Add check for the existence of a valid USB interface 1.

drivers/bluetooth/btusb.c | 34 +++++++++++++++++++++++++++++++++-
1 file changed, 33 insertions(+), 1 deletion(-)

[github-actions]

CheckPatch
Desc: Run checkpatch.pl script
Duration: 0.24 seconds
Result: PENDING

[github-actions]

GitLint
Desc: Run gitlint
Duration: 0.24 seconds
Result: PENDING

[github-actions]

SubjectPrefix
Desc: Check subject contains "Bluetooth" prefix
Duration: 0.09 seconds
Result: PASS

[github-actions]

BuildKernel
Desc: Build Kernel for Bluetooth
Duration: 24.52 seconds
Result: PASS

[github-actions]

CheckAllWarning
Desc: Run linux kernel with all warning enabled
Duration: 28.65 seconds
Result: PASS

[github-actions]

CheckSparse
Desc: Run sparse tool with linux kernel
Duration: 30.25 seconds
Result: PASS

[github-actions]

BuildKernel32
Desc: Build 32bit Kernel for Bluetooth
Duration: 24.18 seconds
Result: PASS

[github-actions]

TestRunnerSetup
Desc: Setup kernel and bluez for test-runner
Duration: 430.44 seconds
Result: PASS

[github-actions]

TestRunner_l2cap-tester
Desc: Run l2cap-tester with test-runner
Duration: 20.19 seconds
Result: PASS

[github-actions]

TestRunner_iso-tester
Desc: Run iso-tester with test-runner
Duration: 29.42 seconds
Result: PASS

[github-actions]

TestRunner_bnep-tester
Desc: Run bnep-tester with test-runner
Duration: 4.76 seconds
Result: PASS

[github-actions]

TestRunner_mgmt-tester
Desc: Run mgmt-tester with test-runner
Duration: 119.16 seconds
Result: FAIL
Output:

Total: 490, Passed: 484 (98.8%), Failed: 2, Not Run: 4

Failed Test Cases
LL Privacy - Start Discovery 2 (Disable RL)          Failed       0.190 seconds
LL Privacy - Set Device Flag 1 (Device Privacy)      Failed       0.153 seconds

[github-actions]

TestRunner_rfcomm-tester
Desc: Run rfcomm-tester with test-runner
Duration: 7.52 seconds
Result: PASS

[github-actions]

TestRunner_sco-tester
Desc: Run sco-tester with test-runner
Duration: 9.32 seconds
Result: PASS

[github-actions]

TestRunner_ioctl-tester
Desc: Run ioctl-tester with test-runner
Duration: 8.02 seconds
Result: PASS

[github-actions]

TestRunner_mesh-tester
Desc: Run mesh-tester with test-runner
Duration: 5.86 seconds
Result: PASS

[github-actions]

TestRunner_smp-tester
Desc: Run smp-tester with test-runner
Duration: 6.91 seconds
Result: PASS

[github-actions]

TestRunner_userchan-tester
Desc: Run userchan-tester with test-runner
Duration: 5.02 seconds
Result: PASS

[github-actions]

IncrementalBuild
Desc: Incremental build with the patches in the series
Duration: 0.61 seconds
Result: PENDING