Commit 12788133 authored Mar 01, 2025 by Pedro Nishiyama Committed by Luiz Augusto von Dentz Mar 25, 2025

Bluetooth: Add quirk for broken READ_PAGE_SCAN_TYPE



Some fake controllers cannot be initialized because they return a smaller
report than expected for READ_PAGE_SCAN_TYPE.

Signed-off-by: Pedro Nishiyama <nishiyama.pedro@gmail.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>

parent ff26b2dd

include/net/bluetooth/hci.h

+8 −0

Original line number	Diff line number	Diff line
		@@ -362,6 +362,14 @@ enum {
		* This quirk must be set before hci_register_dev is called.
		*/
		HCI_QUIRK_BROKEN_READ_VOICE_SETTING,

		/* When this quirk is set, the HCI_OP_READ_PAGE_SCAN_TYPE command is
		* skipped. This is required for a subset of the CSR controller clones
		* which erroneously claim to support it.
		*
		* This quirk must be set before hci_register_dev is called.
		*/
		HCI_QUIRK_BROKEN_READ_PAGE_SCAN_TYPE,
		};

		/* HCI device flags */

net/bluetooth/hci_sync.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -4132,7 +4132,8 @@ static int hci_read_page_scan_type_sync(struct hci_dev *hdev)
		* support the Read Page Scan Type command. Check support for
		* this command in the bit mask of supported commands.
		*/
		if (!(hdev->commands[13] & 0x01))
		if (!(hdev->commands[13] & 0x01) \|\|
		test_bit(HCI_QUIRK_BROKEN_READ_PAGE_SCAN_TYPE, &hdev->quirks))
		return 0;

		return __hci_cmd_sync_status(hdev, HCI_OP_READ_PAGE_SCAN_TYPE,