LinuxLists.cc - [PATCH] Bluetooth: btusb: Add support for LG LGSBWAC92/TWCM-K505D

2020-10-16 04:18:42

Subject: [PATCH] Bluetooth: btusb: Add support for LG LGSBWAC92/TWCM-K505D

2020-10-21 09:10:35

Subject: Re: [PATCH] Bluetooth: btusb: Add support for LG LGSBWAC92/TWCM-K505D

Hi Forest,

> The LG LGSBWAC92/TWCM-K505D/EAT64454801/EAT64454802 (it goes by many
> names) is a combo WiFi/Bluetooth module that's used in several models of
> LG TVs. It uses the MediaTek MT7668AUN, which is already supported in
> btusb, but this device has a non-MediaTek USB VID so to get it to work
> we just need to add it to the list of devices to probe.
>
> Signed-off-by: Forest Crossman <[email protected]>
> ---
> drivers/bluetooth/btusb.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
> index 5f022e9cf667..58259b6a43c7 100644
> --- a/drivers/bluetooth/btusb.c
> +++ b/drivers/bluetooth/btusb.c
> @@ -366,6 +366,7 @@ static const struct usb_device_id blacklist_table[] = {
> /* MediaTek Bluetooth devices */
> { USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
> .driver_info = BTUSB_MEDIATEK },
> + { USB_DEVICE(0x043e, 0x3109), .driver_info = BTUSB_MEDIATEK },
>
> /* Additional Realtek 8723AE Bluetooth devices */
> { USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },

please include the content of /sys/kernel/debug/usb/devices in the commit
message.

Regards

Marcel

2020-10-21 12:17:16

by Forest Crossman

[permalink] [raw]

Subject: [PATCH v2] Bluetooth: btusb: Add support for LG LGSBWAC92/TWCM-K505D

The LG LGSBWAC92/TWCM-K505D/EAT64454801/EAT64454802 (it goes by many
names) is a combo WiFi/Bluetooth module that's used in several models of
LG TVs. It uses the MediaTek MT7668AUN, which is already supported in
btusb, but this device has a non-MediaTek USB VID so to get it to work
we just need to add it to the list of devices to probe.

Device from /sys/kernel/debug/usb/devices:

T: Bus=09 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 6 Spd=480 MxCh= 0
D: Ver= 2.10 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs= 1
P: Vendor=043e ProdID=3109 Rev= 1.00
S: Manufacturer=MediaTek Inc.
S: Product=Wireless_Device
S: SerialNumber=000000000
C:* #Ifs= 3 Cfg#= 1 Atr=a0 MxPwr=100mA
A: FirstIf#= 0 IfCount= 2 Cls=e0(wlcon) Sub=01 Prot=01
I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=81(I) Atr=03(Int.) MxPS= 16 Ivl=125us
E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms
I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms
I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms
I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms
I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms
I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms
I: If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb
E: Ad=83(I) Atr=01(Isoc) MxPS= 63 Ivl=1ms
E: Ad=03(O) Atr=01(Isoc) MxPS= 63 Ivl=1ms
I:* If#= 2 Alt= 0 #EPs= 8 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=08(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=06(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=07(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=09(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms

Signed-off-by: Forest Crossman <[email protected]>
---

Changes from v1:
- Added /sys/kernel/debug/usb/devices info.
- Specify device with USB_DEVICE_AND_INTERFACE_INFO instead of just
USB_DEVICE.

---
drivers/bluetooth/btusb.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 5f022e9cf667..fbc7b87f0190 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -366,6 +366,8 @@ static const struct usb_device_id blacklist_table[] = {
/* MediaTek Bluetooth devices */
{ USB_VENDOR_AND_INTERFACE_INFO(0x0e8d, 0xe0, 0x01, 0x01),
.driver_info = BTUSB_MEDIATEK },
+ { USB_DEVICE_AND_INTERFACE_INFO(0x043e, 0x3109, 0xe0, 0x01, 0x01),
+ .driver_info = BTUSB_MEDIATEK },

/* Additional Realtek 8723AE Bluetooth devices */
{ USB_DEVICE(0x0930, 0x021d), .driver_info = BTUSB_REALTEK },
--
2.20.1