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From:   bugzilla-daemon@kernel.org
To:     linux-bluetooth@vger.kernel.org
Subject: [Bug 216817] btusb device with ID 0489:e0d0 no longer working after
 v6.0
Date:   Mon, 19 Dec 2022 21:10:16 +0000
Message-ID: <bug-216817-62941-DWPzypSwyv@https.bugzilla.kernel.org/>
In-Reply-To: <bug-216817-62941@https.bugzilla.kernel.org/>
References: <bug-216817-62941@https.bugzilla.kernel.org/>
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https://bugzilla.kernel.org/show_bug.cgi?id=3D216817

--- Comment #5 from Luiz Von Dentz (luiz.dentz@gmail.com) ---
(In reply to Andrew M from comment #3)
> Unfortunately it sill fails with 6.1 from Arch testing and a latest git p=
ull
> (6.1.r13139.gf9ff5644bcc0) which both include that change.

Can you try with the following patch:

diff --git a/net/bluetooth/hci_sync.c b/net/bluetooth/hci_sync.c
index 5220bfd75b00..b3676b899647 100644
--- a/net/bluetooth/hci_sync.c
+++ b/net/bluetooth/hci_sync.c
@@ -3572,7 +3572,7 @@ static const struct hci_init_stage hci_init2[] =3D {
 static int hci_le_read_buffer_size_sync(struct hci_dev *hdev)
 {
        /* Use Read LE Buffer Size V2 if supported */
-       if (hdev->commands[41] & 0x20)
+       if (iso_capable(hdev) && hdev->commands[41] & 0x20)
                return __hci_cmd_sync_status(hdev,
                                             HCI_OP_LE_READ_BUFFER_SIZE_V2,
                                             0, NULL, HCI_CMD_TIMEOUT);

--=20
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