Bluetooth: Read Verbose Config Version Info for Broadcom devices (15c32c5f) · Commits · 戴 / test

The Broadcom devices expose their chip id via Read Verbose Config Version Info command. While this information is not used at the moment, it might be useful for debugging purposes and so read it before patching the firmware. This makes it show up in dmesg and HCI traces taken for the system. Signed-off-by:

Marcel Holtmann <marcel@holtmann.org> Signed-off-by:

Johan Hedberg <johan.hedberg@intel.com>

drivers/bluetooth/btusb.c

+19 −0

Original line number	Diff line number	Diff line
		@@ -2458,6 +2458,25 @@ static int btusb_setup_bcm_patchram(struct hci_dev *hdev)
		subver = le16_to_cpu(ver->lmp_subver);
		kfree_skb(skb);

		/* Read Verbose Config Version Info */
		skb = __hci_cmd_sync(hdev, 0xfc79, 0, NULL, HCI_INIT_TIMEOUT);
		if (IS_ERR(skb)) {
		ret = PTR_ERR(skb);
		BT_ERR("%s: BCM: Read Verbose Version failed (%ld)",
		hdev->name, ret);
		return ret;
		}

		if (skb->len != 7) {
		BT_ERR("%s: BCM: Read Verbose Version event length mismatch",
		hdev->name);
		kfree_skb(skb);
		return -EIO;
		}

		BT_INFO("%s: BCM: chip id %u", hdev->name, skb->data[1]);
		kfree_skb(skb);

		for (i = 0; bcm_subver_table[i].name; i++) {
		if (subver == bcm_subver_table[i].subver) {
		hw_name = bcm_subver_table[i].name;

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