Re: SMS sending error with Telit module
- From: Enrico Murador - Research & Development - CET <rd cet-electronics com>
- To: networkmanager-list gnome org
- Subject: Re: SMS sending error with Telit module
- Date: Thu, 11 Apr 2013 10:37:15 +0200
On 10/04/2013 17:28, Dan Williams wrote:
In the case where the module has multiple AT-capable ports, any of them
are available for PPP unless ModemManager is told otherwise. Typically
MM does this either by asking the modem which ports it supports PPP on
(through proprietary AT commands), or by udev rules to "tag" the
specific USB interfaces as capable of PPP or not when we can't figure
this out automatically.
Otherwise, if you determine that USB2 is the only one that reliably
supports the PPP connection, then we'll need to investigate whether this
is the same for all other devices with that vendor and product ID, or
whether there's an AT command we can run to ask the modem about this, or
whether we just need to tag the ports and hope for the best.
Also, can you grab 'lsusb -v -d <vid:pid>' output for your module?
Often the PPP-capable ports are the ones with an Interrupt endpoint,
while AT ports that don't support PPP do not have the interrupt
endpoint, only bulk in/bulk out ones.
Dan
Following is the output of lsusb, together with the list of detected
serial ports. It seems that module port order remains the same every
connection: first is modem port, second is diagnostic port, third is
auxiliary port (as I found in this document:
http://www.telit.com/files/en/products/evk_drivers/Telit_UC_CC_DE_USB_Driver_for_Linux_U0_00_04_r3.pdf).
In my case assigned ports are always USB2, 3 and 4, so the problem is
probably that MM chooses the wrong port for PPP.
Two questions:
How can I tell MM to use a particular USB port for PPP?
I need to send SMS while data connection is active. Do I have to
manually select an USB port also for this task (maybe auxiliary port)?
(and if yes, how I can do?)
Thank you very much
"lsusb -v -d" output:
Bus 002 Device 030: ID 1bc7:1003
Couldn't open device, some information will be missing
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x1bc7
idProduct 0x1003
bcdDevice 0.00
iManufacturer 1
iProduct 2
iSerial 4
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 85
bNumInterfaces 3
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
(Bus Powered)
Remote Wakeup
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 3
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 3
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 128
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 3
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x04 EP 4 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 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 255 Vendor Specific Protocol
iInterface 3
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x03 EP 3 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 0
Serial port list (by-id):
lrwxrwxrwx 1 root root 13 apr 10 16:31
usb-FTDI_FT232X_USB_UART_DAWEJ78H-if00-port0 -> ../../ttyUSB1
lrwxrwxrwx 1 root root 13 apr 9 17:21
usb-FTDI_FT232X_USB_UART_DAWELHRS-if00-port0 -> ../../ttyUSB0
lrwxrwxrwx 1 root root 13 apr 11 09:31
usb-Telit_Wireless_Solutions_Telit_HSDPA_Wireless_Modem_000000000002-if00-port0
-> ../../ttyUSB2
lrwxrwxrwx 1 root root 13 apr 11 09:31
usb-Telit_Wireless_Solutions_Telit_HSDPA_Wireless_Modem_000000000002-if01-port0
-> ../../ttyUSB3
lrwxrwxrwx 1 root root 13 apr 11 09:31
usb-Telit_Wireless_Solutions_Telit_HSDPA_Wireless_Modem_000000000002-if02-port0
-> ../../ttyUSB4
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