usb modem "Can't setup transfer"
Alfred Perlstein
alfred at freebsd.org
Wed Nov 11 19:51:42 UTC 2015
On 11/11/15 12:36 AM, Hans Petter Selasky wrote:
> On 11/11/15 04:37, Alfred Perlstein wrote:
>> Hello,
>>
>> A friend gave me a usb modem recently. The model is:
>> Multi-Tech Systems - Multi-Modem USB - MT5634ZBA
>>
>> The Linux driver info is here:
>> ftp://ftp.multitech.com/usb/usb-linux2.txt
>>
>> When I plug this device into FreeBSD I get a ugen0 device.
>>
>> So I tried hacking into the driver itself:
>>
>> diff --git a/sys/dev/usb/serial/umodem.c b/sys/dev/usb/serial/umodem.c
>> index c1e8812..9886294 100644
>> --- a/sys/dev/usb/serial/umodem.c
>> +++ b/sys/dev/usb/serial/umodem.c
>> @@ -136,6 +136,7 @@ static const STRUCT_USB_HOST_ID
>> umodem_host_devs[] = {
>> {USB_VPI(USB_VENDOR_KYOCERA, USB_PRODUCT_KYOCERA_AHK3001V, 1)},
>> {USB_VPI(USB_VENDOR_SIERRA, USB_PRODUCT_SIERRA_MC5720, 1)},
>> {USB_VPI(USB_VENDOR_CURITEL, USB_PRODUCT_CURITEL_PC5740, 1)},
>> + {USB_VP(0x06e0, 0xf107)},
>> };
>>
>> /*
>>
>>
>> Now I get the following:
>>
>> Nov 10 19:19:54 spigot kernel: ugen3.3: <Multi-Tech Systems, Inc.> at
>> usbus3
>> Nov 10 19:19:54 spigot kernel: umodem0: <Multi-Tech Win95 Modem USB> on
>> usbus3
>> Nov 10 19:19:54 spigot kernel: umodem0: data interface 1, has CM over
>> data, has no break
>> Nov 10 19:19:54 spigot kernel: umodem0: Can't setup transfer
>> Nov 10 19:19:54 spigot kernel: device_attach: umodem0 attach returned 6
>>
>> I read the Linux driver and it seems pretty similar, although it does
>> look like they have a ton more quirks and edge cases the handle. The
>> file in Linux I'm looking at is: linux/drivers/usb/class/cdc-acm.c (this
>> seems to make the most sense given the instructions given at
>> ftp://ftp.multitech.com/usb/usb-linux2.txt).
>>
>> I tried turning on sysctl hw.usb.debug=10 however after doing so it
>> didn't seem to want to probe anymore.
>>
>> Any ideas?
>>
>> I can ship this modem to someone if they are interested and have a good
>> idea how to fix.
>
> Hi,
>
> Can you send the configuration descriptor dump:
>
> usbconfig -d X.Y dump_device_desc dump_curr_config_desc
>
> Maybe the modem fits into the U3G driver.
>
> --HPS
>
Hans,
Moving it to u3g on -current gives nearly same error:
Nov 11 11:38:48 spigot kernel: u3g0:
Nov 11 11:38:48 spigot kernel: <Multi-Tech Win95 Modem USB> on usbus3
Nov 11 11:38:49 spigot kernel: u3g0: no ports found
Nov 11 11:38:49 spigot kernel: device_attach: u3g0 attach returned 6
Nov 11 11:38:56 spigot kernel: ugen3.3: <Multi-Tech Systems, Inc.> at
usbus3 (disconnected)
Nov 11 11:39:00 spigot kernel: ugen3.3: <Multi-Tech Systems, Inc.> at usbus3
Nov 11 11:39:00 spigot kernel: u3g0: <Multi-Tech Win95 Modem USB> on usbus3
Nov 11 11:39:00 spigot kernel: u3g0: no ports found
Nov 11 11:39:00 spigot kernel: device_attach: u3g0 attach returned 6
Output from usbconfig is as follows:
/usr/home/alfred # usbconfig -d 3.3 dump_device_desc dump_curr_config_desc
ugen3.3: <MultiModemUSB Multi-Tech Systems, Inc.> at usbus3, cfg=0
md=HOST spd=FULL (12Mbps) pwr=ON (400mA)
bLength = 0x0012
bDescriptorType = 0x0001
bcdUSB = 0x0100
bDeviceClass = 0x0002 <Communication device>
bDeviceSubClass = 0x0000
bDeviceProtocol = 0x0000
bMaxPacketSize0 = 0x0008
idVendor = 0x06e0
idProduct = 0xf107
bcdDevice = 0x0100
iManufacturer = 0x0001 <Multi-Tech Systems, Inc.>
iProduct = 0x0002 <MultiModemUSB>
iSerialNumber = 0x0000 <no string>
bNumConfigurations = 0x0002
Configuration index 0
bLength = 0x0009
bDescriptorType = 0x0002
wTotalLength = 0x0029
bNumInterfaces = 0x0002
bConfigurationValue = 0x0001
iConfiguration = 0x0003 <Multi-Tech NT Modem USB>
bmAttributes = 0x00a0
bMaxPower = 0x00c8
Interface 0
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0000
bAlternateSetting = 0x0000
bNumEndpoints = 0x0000
bInterfaceClass = 0x00ff <Vendor specific>
bInterfaceSubClass = 0x00ff
bInterfaceProtocol = 0x00ff
iInterface = 0x0004 <Multi-Tech Win95 Modem USB>
Interface 1
bLength = 0x0009
bDescriptorType = 0x0004
bInterfaceNumber = 0x0001
bAlternateSetting = 0x0000
bNumEndpoints = 0x0002
bInterfaceClass = 0x00ff <Vendor specific>
bInterfaceSubClass = 0x00ff
bInterfaceProtocol = 0x00ff
iInterface = 0x0005 <Control Interface>
Endpoint 0
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0002 <OUT>
bmAttributes = 0x0002 <BULK>
wMaxPacketSize = 0x0010
bInterval = 0x0000
bRefresh = 0x0000
bSynchAddress = 0x0000
Endpoint 1
bLength = 0x0007
bDescriptorType = 0x0005
bEndpointAddress = 0x0084 <IN>
bmAttributes = 0x0003 <INTERRUPT>
wMaxPacketSize = 0x003f
bInterval = 0x0002
bRefresh = 0x0000
bSynchAddress = 0x0000
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