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| author |   Javier Tia <floss@jetm.me> | 2026-03-30 14:39:24 -0600 |
|---|---|---|
| committer |   Luiz Augusto von Dentz <luiz.von.dentz@intel.com> | 2026-04-13 09:18:16 -0400 |
| commit | e4f6bc7f8222a9e40283d3fc6c4c4c656d79a48e (patch) | |
| tree | 66ba2d3c5ca6bea91aa0e48e64a720f6bfd26760 /rust/kernel/ssh:/git@git.zx2c4.com | |
| parent | Bluetooth: btmtk: Add MT6639 (MT7927) Bluetooth support (diff) | |
Bluetooth: btmtk: fix ISO interface setup for single alt setting
Some MT6639 Bluetooth USB interfaces (e.g. IMC Networks 13d3:3588 on
ASUS ROG STRIX X870E-E and ProArt X870E-Creator boards) expose only a
single alternate setting (alt 0) on the ISO interface. The driver
unconditionally requests alt setting 1, which fails with EINVAL on
these devices, causing a ~20 second initialization delay and no LE
audio support.
Check the number of available alternate settings before selecting one.
If only alt 0 exists, use it; otherwise request alt 1 as before.
Closes: https://github.com/jetm/mediatek-mt7927-dkms/pull/39
Signed-off-by: Javier Tia <floss@jetm.me>
Reported-by: Ryan Gilbert <xelnaga@gmail.com>
Tested-by: Ryan Gilbert <xelnaga@gmail.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'rust/kernel/ssh:/git@git.zx2c4.com')
0 files changed, 0 insertions, 0 deletions