2010/7/26 Hiisi very-cool@rambler.ru:
2010/7/25 Kevin J. Cummings cummings@kjchome.homeip.net:
On 07/25/2010 11:09 AM, Hiisi wrote:
<--SNIP-->
I've solved my problem by adding this udev rule: KERNEL=="ttyUSB*", ATTRS{idVendor}=="1d6b", ATTRS{idProduct}=="0002", SYMLINK="modem", OWNER="smsd", GROUP="dialout", MODE="0660" Now I have: # ls -l /dev/modem lrwxrwxrwx. 1 root root 7 26.7. 16:56 /dev/modem -> ttyUSB3 # ls -l /dev/ttyUSB* crw-rw----. 1 smsd dialout 188, 0 26.7. 16:56 /dev/ttyUSB0 crw-rw----. 1 smsd dialout 188, 1 26.7. 16:56 /dev/ttyUSB1 crw-rw----. 1 smsd dialout 188, 3 26.7. 16:56 /dev/ttyUSB3
In this configuration it works for my needs. But now I encouraged another problem. The device unsuspectingly disconnects and then reconnects by itself. The /dev/modem symlink disappears after this.
From dmesg output:
usb 1-4: USB disconnect, address 33 option: option_instat_callback: error -108 option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0 option 1-4:1.0: device disconnected option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1 option 1-4:1.1: device disconnected option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3 option 1-4:1.2: device disconnected usb 1-4: new high speed USB device using ehci_hcd and address 34 hub 1-0:1.0: unable to enumerate USB device on port 4 hub 3-0:1.0: unable to enumerate USB device on port 2 usb 1-4: new high speed USB device using ehci_hcd and address 35 hub 1-0:1.0: unable to enumerate USB device on port 4 usb 1-4: new high speed USB device using ehci_hcd and address 36 hub 1-0:1.0: unable to enumerate USB device on port 4 usb 3-2: new full speed USB device using ohci_hcd and address 13 usb 3-2: not running at top speed; connect to a high speed hub usb 3-2: New USB device found, idVendor=12d1, idProduct=1001 usb 3-2: New USB device strings: Mfr=2, Product=1, SerialNumber=0 usb 3-2: Product: HUAWEI Mobile usb 3-2: Manufacturer: HUAWEI Technology usb 3-2: configuration #1 chosen from 1 choice option 3-2:1.0: GSM modem (1-port) converter detected usb 3-2: GSM modem (1-port) converter now attached to ttyUSB0 option 3-2:1.1: GSM modem (1-port) converter detected usb 3-2: GSM modem (1-port) converter now attached to ttyUSB1 option 3-2:1.2: GSM modem (1-port) converter detected usb 3-2: GSM modem (1-port) converter now attached to ttyUSB3
How can I find what causes these disconnections?