* [PATCH] USB: serial: option: add missing RSVD(5) flag for Rolling RW135R-GL
@ 2026-05-12 10:37 zwq2226404116
2026-05-12 14:15 ` Johan Hovold
0 siblings, 1 reply; 4+ messages in thread
From: zwq2226404116 @ 2026-05-12 10:37 UTC (permalink / raw)
To: johan, gregkh; +Cc: linux-usb, linux-kernel, zwq2226404116, Wanquan Zhong
From: Wanquan Zhong <wanquan.zhong@fibocom.com>
The RW135R-GL MBIM interface entry added in commit before was missing
the .driver_info = RSVD(5) flag.
Without this flag, the option driver binds to the MBIM interface
and conflicts with the cdc_mbim driver, causing AT/MBIM communication
failures after switching to 43 mode. This matches the handling of
other Rolling Wireless MBIM devices.
- VID:PID 33f8:1003, RW135R-GL for laptop debug M.2 cards(with MBIM
interface for /Linux/Chrome OS)
0x1003: mbim, diag, AT, pipe
Here are the outputs of usb-devices in different mode:
T: Bus=03 Lev=01 Prnt=01 Port=04 Cnt=02 Dev#= 8 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=33f8 ProdID=1003 Rev= 5.15
S: Manufacturer=Rolling Wireless S.a.r.l.
S: Product=Rolling RW135R-GL Module
S: SerialNumber=12345678
C:* #Ifs= 5 Cfg#= 1 Atr=a0 MxPwr=500mA
A: FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00
I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim
E: Ad=82(I) Atr=03(Int.) MxPS= 64 Ivl=32ms
I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option
E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
E: Ad=86(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
- VID:PID 33f8:1003, RW135R-GL for laptop debug M.2 cards(with MBIM
interface for /Linux/Chrome OS)
0x1003: mbim, diag, AT, ADB, pipe
Here are the outputs of usb-devices:
T: Bus=03 Lev=01 Prnt=01 Port=04 Cnt=02 Dev#= 7 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=33f8 ProdID=1003 Rev= 5.15
S: Manufacturer=Rolling Wireless S.a.r.l.
S: Product=Rolling RW135R-GL Module
S: SerialNumber=12345678
C:* #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=500mA
A: FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00
I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim
E: Ad=82(I) Atr=03(Int.) MxPS= 64 Ivl=32ms
I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms:
I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option
E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
E: Ad=86(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=87(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
- VID:PID 33f8:1003, RW135R-GL for laptop debug M.2 cards(with MBIM
interface for /Linux/Chrome OS)
0x1003: mbim, pipe
Here are the outputs of usb-devices:
T: Bus=03 Lev=01 Prnt=01 Port=04 Cnt=02 Dev#= 9 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=33f8 ProdID=1003 Rev= 5.15
S: Manufacturer=Rolling Wireless S.a.r.l.
S: Product=Rolling RW135R-GL Module
S: SerialNumber=12345678
C:* #Ifs= 3 Cfg#= 1 Atr=a0 MxPwr=500mA
A: FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00
I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim
E: Ad=82(I) Atr=03(Int.) MxPS= 64 Ivl=32ms
I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
Fixes: 01e8d0f742222f1e68f48180d5480097adf7ae9f ("usb: serial: add support for Rolling Wireless RW135R-GL (33f8:1003)")
Signed-off-by: Wanquan Zhong <wanquan.zhong@fibocom.com>
---
drivers/usb/serial/option.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index c71461893d20..dfec7467b36c 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -2466,7 +2466,8 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x0302, 0xff) }, /* Rolling RW101R-GL (laptop MBIM) */
{ USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x0802, 0xff), /* Rolling RW350-GL (laptop MBIM) */
.driver_info = RSVD(5) },
- { USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x1003, 0xff) }, /* Rolling RW135R-GL (laptop MBIM) */
+ { USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x1003, 0xff), /* Rolling RW135R-GL (laptop MBIM) */
+ .driver_info = RSVD(5) },
{ USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0xff, 0x30) }, /* NetPrisma LCUK54-WWD for Global */
{ USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0x00, 0x40) },
{ USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0xff, 0x40) },
--
2.43.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] USB: serial: option: add missing RSVD(5) flag for Rolling RW135R-GL
2026-05-12 10:37 [PATCH] USB: serial: option: add missing RSVD(5) flag for Rolling RW135R-GL zwq2226404116
@ 2026-05-12 14:15 ` Johan Hovold
0 siblings, 0 replies; 4+ messages in thread
From: Johan Hovold @ 2026-05-12 14:15 UTC (permalink / raw)
To: zwq2226404116; +Cc: gregkh, linux-usb, linux-kernel, Wanquan Zhong
On Tue, May 12, 2026 at 06:37:59PM +0800, zwq2226404116@163.com wrote:
> From: Wanquan Zhong <wanquan.zhong@fibocom.com>
>
> The RW135R-GL MBIM interface entry added in commit before was missing
> the .driver_info = RSVD(5) flag.
>
> Without this flag, the option driver binds to the MBIM interface
> and conflicts with the cdc_mbim driver, causing AT/MBIM communication
> failures after switching to 43 mode. This matches the handling of
> other Rolling Wireless MBIM devices.
This doesn't make much sense. The MBIM interfaces are not vendor class
and will not be bound by this driver. They don't use interface number
five either.
You probably want this for the ADB interface in the second configuration
below, but the commit message needs to be updated.
> - VID:PID 33f8:1003, RW135R-GL for laptop debug M.2 cards(with MBIM
> interface for /Linux/Chrome OS)
> 0x1003: mbim, diag, AT, pipe
> Here are the outputs of usb-devices in different mode:
> T: Bus=03 Lev=01 Prnt=01 Port=04 Cnt=02 Dev#= 8 Spd=480 MxCh= 0
> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
> P: Vendor=33f8 ProdID=1003 Rev= 5.15
> S: Manufacturer=Rolling Wireless S.a.r.l.
> S: Product=Rolling RW135R-GL Module
> S: SerialNumber=12345678
> C:* #Ifs= 5 Cfg#= 1 Atr=a0 MxPwr=500mA
> A: FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00
> I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim
> E: Ad=82(I) Atr=03(Int.) MxPS= 64 Ivl=32ms
> I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
> I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
> E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option
> E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
> E: Ad=86(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
> E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
>
> - VID:PID 33f8:1003, RW135R-GL for laptop debug M.2 cards(with MBIM
> interface for /Linux/Chrome OS)
> 0x1003: mbim, diag, AT, ADB, pipe
> Here are the outputs of usb-devices:
> T: Bus=03 Lev=01 Prnt=01 Port=04 Cnt=02 Dev#= 7 Spd=480 MxCh= 0
> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
> P: Vendor=33f8 ProdID=1003 Rev= 5.15
> S: Manufacturer=Rolling Wireless S.a.r.l.
> S: Product=Rolling RW135R-GL Module
> S: SerialNumber=12345678
> C:* #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=500mA
> A: FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00
> I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim
> E: Ad=82(I) Atr=03(Int.) MxPS= 64 Ivl=32ms
> I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
> I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
> E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms:
> I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option
> E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
> E: Ad=86(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
> E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
> E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=87(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
>
> - VID:PID 33f8:1003, RW135R-GL for laptop debug M.2 cards(with MBIM
> interface for /Linux/Chrome OS)
> 0x1003: mbim, pipe
> Here are the outputs of usb-devices:
> T: Bus=03 Lev=01 Prnt=01 Port=04 Cnt=02 Dev#= 9 Spd=480 MxCh= 0
> D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
> P: Vendor=33f8 ProdID=1003 Rev= 5.15
> S: Manufacturer=Rolling Wireless S.a.r.l.
> S: Product=Rolling RW135R-GL Module
> S: SerialNumber=12345678
> C:* #Ifs= 3 Cfg#= 1 Atr=a0 MxPwr=500mA
> A: FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00
> I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim
> E: Ad=82(I) Atr=03(Int.) MxPS= 64 Ivl=32ms
> I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
> I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
> E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
> E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
> E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
>
> Fixes: 01e8d0f742222f1e68f48180d5480097adf7ae9f ("usb: serial: add support for Rolling Wireless RW135R-GL (33f8:1003)")
Please only use 12 chars for the commit id, and make sure to use the
summary from the git log, that is:
Fixes: 01e8d0f74222 ("USB: serial: option: add support for Rolling Wireless RW135R-GL")
> Signed-off-by: Wanquan Zhong <wanquan.zhong@fibocom.com>
> ---
> drivers/usb/serial/option.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
> index c71461893d20..dfec7467b36c 100644
> --- a/drivers/usb/serial/option.c
> +++ b/drivers/usb/serial/option.c
> @@ -2466,7 +2466,8 @@ static const struct usb_device_id option_ids[] = {
> { USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x0302, 0xff) }, /* Rolling RW101R-GL (laptop MBIM) */
> { USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x0802, 0xff), /* Rolling RW350-GL (laptop MBIM) */
> .driver_info = RSVD(5) },
> - { USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x1003, 0xff) }, /* Rolling RW135R-GL (laptop MBIM) */
> + { USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x1003, 0xff), /* Rolling RW135R-GL (laptop MBIM) */
> + .driver_info = RSVD(5) },
> { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0xff, 0x30) }, /* NetPrisma LCUK54-WWD for Global */
> { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0x00, 0x40) },
> { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0xff, 0x40) },
Johan
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH] USB: serial: option: add missing RSVD(5) flag for Rolling RW135R-GL
@ 2026-05-13 3:07 zwq2226404116
2026-05-13 6:18 ` Johan Hovold
0 siblings, 1 reply; 4+ messages in thread
From: zwq2226404116 @ 2026-05-13 3:07 UTC (permalink / raw)
To: johan, gregkh; +Cc: linux-usb, linux-kernel, zwq2226404116, Wanquan Zhong
From: Wanquan Zhong <wanquan.zhong@fibocom.com>
The RW135R-GL MBIM interface entry added in commit before was missing
the .driver_info = RSVD(5) flag.
Without this flag, the option driver binds to the MBIM interface
and conflicts with the cdc_mbim driver, causing AT/MBIM communication
failures after switching to 43 mode. This matches the handling of
other Rolling Wireless MBIM devices.
- VID:PID 33f8:1003, RW135R-GL for laptop debug M.2 cards(with MBIM
interface for /Linux/Chrome OS)
0x1003: mbim, diag, AT, pipe
Here are the outputs of usb-devices in different mode:
T: Bus=03 Lev=01 Prnt=01 Port=04 Cnt=02 Dev#= 8 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=33f8 ProdID=1003 Rev= 5.15
S: Manufacturer=Rolling Wireless S.a.r.l.
S: Product=Rolling RW135R-GL Module
S: SerialNumber=12345678
C:* #Ifs= 5 Cfg#= 1 Atr=a0 MxPwr=500mA
A: FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00
I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim
E: Ad=82(I) Atr=03(Int.) MxPS= 64 Ivl=32ms
I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option
E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
E: Ad=86(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
- VID:PID 33f8:1003, RW135R-GL for laptop debug M.2 cards(with MBIM
interface for /Linux/Chrome OS)
0x1003: mbim, diag, AT, ADB, pipe
Here are the outputs of usb-devices:
T: Bus=03 Lev=01 Prnt=01 Port=04 Cnt=02 Dev#= 7 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=33f8 ProdID=1003 Rev= 5.15
S: Manufacturer=Rolling Wireless S.a.r.l.
S: Product=Rolling RW135R-GL Module
S: SerialNumber=12345678
C:* #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=500mA
A: FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00
I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim
E: Ad=82(I) Atr=03(Int.) MxPS= 64 Ivl=32ms
I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms:
I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option
E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
E: Ad=86(I) Atr=03(Int.) MxPS= 10 Ivl=32ms
E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 5 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=42 Prot=01 Driver=(none)
E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=87(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
- VID:PID 33f8:1003, RW135R-GL for laptop debug M.2 cards(with MBIM
interface for /Linux/Chrome OS)
0x1003: mbim, pipe
Here are the outputs of usb-devices:
T: Bus=03 Lev=01 Prnt=01 Port=04 Cnt=02 Dev#= 9 Spd=480 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=33f8 ProdID=1003 Rev= 5.15
S: Manufacturer=Rolling Wireless S.a.r.l.
S: Product=Rolling RW135R-GL Module
S: SerialNumber=12345678
C:* #Ifs= 3 Cfg#= 1 Atr=a0 MxPwr=500mA
A: FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00
I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim
E: Ad=82(I) Atr=03(Int.) MxPS= 64 Ivl=32ms
I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E: Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
Fixes: 01e8d0f74222 ("usb: serial: add support for Rolling Wireless RW135R-GL (33f8:1003)")
Signed-off-by: Wanquan Zhong <wanquan.zhong@fibocom.com>
---
drivers/usb/serial/option.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index c71461893d20..dfec7467b36c 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -2466,7 +2466,8 @@ static const struct usb_device_id option_ids[] = {
{ USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x0302, 0xff) }, /* Rolling RW101R-GL (laptop MBIM) */
{ USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x0802, 0xff), /* Rolling RW350-GL (laptop MBIM) */
.driver_info = RSVD(5) },
- { USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x1003, 0xff) }, /* Rolling RW135R-GL (laptop MBIM) */
+ { USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x1003, 0xff), /* Rolling RW135R-GL (laptop MBIM) */
+ .driver_info = RSVD(5) },
{ USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0xff, 0x30) }, /* NetPrisma LCUK54-WWD for Global */
{ USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0x00, 0x40) },
{ USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0xff, 0x40) },
--
2.43.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH] USB: serial: option: add missing RSVD(5) flag for Rolling RW135R-GL
2026-05-13 3:07 zwq2226404116
@ 2026-05-13 6:18 ` Johan Hovold
0 siblings, 0 replies; 4+ messages in thread
From: Johan Hovold @ 2026-05-13 6:18 UTC (permalink / raw)
To: zwq2226404116; +Cc: gregkh, linux-usb, linux-kernel, Wanquan Zhong
On Wed, May 13, 2026 at 11:07:37AM +0800, zwq2226404116@163.com wrote:
> From: Wanquan Zhong <wanquan.zhong@fibocom.com>
>
> The RW135R-GL MBIM interface entry added in commit before was missing
> the .driver_info = RSVD(5) flag.
>
> Without this flag, the option driver binds to the MBIM interface
> and conflicts with the cdc_mbim driver, causing AT/MBIM communication
> failures after switching to 43 mode. This matches the handling of
> other Rolling Wireless MBIM devices.
Looks like you mistakenly sent the same (v1) patch again.
Johan
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2026-05-13 6:18 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2026-05-12 10:37 [PATCH] USB: serial: option: add missing RSVD(5) flag for Rolling RW135R-GL zwq2226404116
2026-05-12 14:15 ` Johan Hovold
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