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Message-ID: <ab8c7550-19b9-f8a9-febb-9d2d558978e7@gmail.com>
Date: Sun, 4 Oct 2020 21:32:17 +0700
From: Lars Melin <larsm17@...il.com>
To: Leonid Bloch <leonidb@...cscloud.com>,
Leonid Bloch <lb.workbox@...il.com>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Cc: "linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Johan Hovold <johan@...nel.org>
Subject: Re: [PATCH] USB: serial: option: Add Telit FT980-KS composition
On 10/4/2020 21:16, Lars Melin wrote:
> On 10/4/2020 20:29, Leonid Bloch wrote:
>> On 10/4/20 1:58 PM, Lars Melin wrote:
>>> On 10/4/2020 16:57, Leonid Bloch wrote:
>>>> This commit adds the following Telit FT980-KS composition:
>>>>
>>>> 0x1054: rndis, diag, adb, nmea, modem, modem, aux
>>>>
>>>> AT commands can be sent to /dev/ttyUSB5.
>>>>
>>>
>>> Please submit a verbose lsusb listing for the device, I can't imagine
>>> that the adb interface should be handled by the option serial driver so
>>> there will never be a ttyUSB5.
>>
>> Please see below.
>>
>> Thanks,
>> Leonid.
>>
>> ```
>> Bus 001 Device 005: ID 1bc7:1054 Telit Wireless Solutions
>> Device Descriptor:
>> bLength 18
>> bDescriptorType 1
>> bcdUSB 2.10
>> bDeviceClass 0
>> bDeviceSubClass 0
>> bDeviceProtocol 0
>> bMaxPacketSize0 64
>> idVendor 0x1bc7 Telit Wireless Solutions
>> idProduct 0x1054
>> bcdDevice 4.14
>> iManufacturer 1 Telit Wireless Solutions
>> iProduct 2 FT980-KS
>> iSerial 3 cb42f61
>> bNumConfigurations 1
>> Configuration Descriptor:
>> bLength 9
>> bDescriptorType 2
>> wTotalLength 0x013d
>> bNumInterfaces 8
>> bConfigurationValue 1
>> iConfiguration 4 RNDIS_DIAG_ADB_NMEA_DUN_DUN_SER
>> bmAttributes 0xa0
>> (Bus Powered)
>> Remote Wakeup
>> MaxPower 500mA
>> Interface Association:
>> bLength 8
>> bDescriptorType 11
>> bFirstInterface 0
>> bInterfaceCount 2
>> bFunctionClass 239 Miscellaneous Device
>> bFunctionSubClass 4
>> bFunctionProtocol 1
>> iFunction 7 RNDIS
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 0
>> bAlternateSetting 0
>> bNumEndpoints 1
>> bInterfaceClass 239 Miscellaneous Device
>> bInterfaceSubClass 4
>> bInterfaceProtocol 1
>> iInterface 5 RNDIS Communications Control
>> ** UNRECOGNIZED: 05 24 00 10 01
>> ** UNRECOGNIZED: 05 24 01 00 01
>> ** UNRECOGNIZED: 04 24 02 00
>> ** UNRECOGNIZED: 05 24 06 00 01
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x81 EP 1 IN
>> bmAttributes 3
>> Transfer Type Interrupt
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0008 1x 8 bytes
>> bInterval 9
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 1
>> bAlternateSetting 0
>> bNumEndpoints 2
>> bInterfaceClass 10 CDC Data
>> bInterfaceSubClass 0
>> bInterfaceProtocol 0
>> iInterface 6 RNDIS Ethernet Data
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x8e EP 14 IN
>> bmAttributes 2
>> Transfer Type Bulk
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0200 1x 512 bytes
>> bInterval 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x0f EP 15 OUT
>> bmAttributes 2
>> Transfer Type Bulk
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0200 1x 512 bytes
>> bInterval 0
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 2
>> bAlternateSetting 0
>> bNumEndpoints 2
>> bInterfaceClass 255 Vendor Specific Class
>> bInterfaceSubClass 255 Vendor Specific Subclass
>> bInterfaceProtocol 48
>> iInterface 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x82 EP 2 IN
>> bmAttributes 2
>> Transfer Type Bulk
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0200 1x 512 bytes
>> bInterval 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x01 EP 1 OUT
>> bmAttributes 2
>> Transfer Type Bulk
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0200 1x 512 bytes
>> bInterval 0
>> Interface Descriptor:
>> bLength 9
>> bDescriptorType 4
>> bInterfaceNumber 3
>> bAlternateSetting 0
>> bNumEndpoints 2
>> bInterfaceClass 255 Vendor Specific Class
>> bInterfaceSubClass 66
>> bInterfaceProtocol 1
>> iInterface 8 ADB Interface
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x02 EP 2 OUT
>> bmAttributes 2
>> Transfer Type Bulk
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0200 1x 512 bytes
>> bInterval 0
>> Endpoint Descriptor:
>> bLength 7
>> bDescriptorType 5
>> bEndpointAddress 0x83 EP 3 IN
>> bmAttributes 2
>> Transfer Type Bulk
>> Synch Type None
>> Usage Type Data
>> wMaxPacketSize 0x0200 1x 512 bytes
>> bInterval 0
>
> //snip
>
> Interface #3 for ADB must be blacklisted in the option entry for the
> device, by using .driver_info = RSVD(3)
>
When looking at the entries for other Telit deices in the option driver
I see that their diag interface always has
the NCTRL flag so it is likely that you need that for this device also.
See the entry for PID 1052
thanks
Lars
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