HCI: increase maxMtu to 128 for Realtek chips #65
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- increase maxMtu to 128 for Realtek chips (enables GATT notify with
large message size)
Tested with ASUS USB-BT500:
usb 1-4: new full-speed USB device number 6 using xhci_hcd
usb 1-4: New USB device found, idVendor=0b05, idProduct=190e, bcdDevice= 2.00
usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-4: Product: ASUS USB-BT500
usb 1-4: Manufacturer: Realtek
usb 1-4: SerialNumber: 00E04C239987
Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
Bluetooth: hci0: RTL: rom_version status=0 version=1
Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_fw.bin
Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_config.bin
Bluetooth: hci0: RTL: cfg_sz 6, total sz 30210
Bluetooth: hci0: RTL: fw version 0xdfc6d922
Bluetooth: MGMT ver 1.23
Notes:
- larger maxMtu values (>248) will lead to failures, e.g. 251 will
already break the GATT characteristic handshake
Signed-off-by: Peter Seiderer <[email protected]>
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Tested with ASUS USB-BT500:
usb 1-4: new full-speed USB device number 6 using xhci_hcd
usb 1-4: New USB device found, idVendor=0b05, idProduct=190e, bcdDevice= 2.00
usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-4: Product: ASUS USB-BT500
usb 1-4: Manufacturer: Realtek
usb 1-4: SerialNumber: 00E04C239987
Bluetooth: hci0: RTL: examining hci_ver=0a hci_rev=000b lmp_ver=0a lmp_subver=8761
Bluetooth: hci0: RTL: rom_version status=0 version=1
Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_fw.bin
Bluetooth: hci0: RTL: loading rtl_bt/rtl8761bu_config.bin
Bluetooth: hci0: RTL: cfg_sz 6, total sz 30210
Bluetooth: hci0: RTL: fw version 0xdfc6d922
Bluetooth: MGMT ver 1.23
Notes: