Dotaz: Hujavej E3131 udev symlink

[the.max]

Ahoj,

trochu se tu peru s GSM modemem Hujavej E3131. Snažím se vytvořit pravidlo do UDEVu, které vytvoří symlink /dev/GSM_E3131. Řeším to proto, protože mám na stejném systému ještě Hujavej E220 a potřebuji je od sebe odliši kvůli smstools.

Pro E220 se mi symlik /dev/GSM_E220 vytvoří správně, je to symlink na /dev/ttyUSBx. Pro E3131 se mi sice symlink taky vytvoří, ale /dev/bsg/99:0:0:0.

Po připojení E3131 do USB se mi vytvoří ttyUSB0, ttyUSB2, ttyUSB3, kdy modem je první zařízení, tedt ttyUSB0, Potřebuji tedy pravidlo, které mi vytvoří ssymlink právě na ttyUSB0.

Pro E220 mi funguje toto:

# symlink
ACTION=="add", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1003", GROUP="uucp", SYMLINK+="GSM_E220"

Analogicky jsem tedy vytvořil peo E3131:

# symlink
ACTION=="add", ATTRS{idVendor}=="12d1", ATTRS{idProduct}=="1506", GROUP="uucp", SYMLINK+="GSM_E3131"

což mi ale vytváří symlink na špatné zařízení.

Narazil jsem na tutostránku, kde se řeší jiný Hujavej, ale ani takové pravidlo mi nejde, to pro jistotu neudělá nic.

Neřešil jste někdo něco podobného?

Odpovědi

[NN]

Jestli to nebude tim, ze E3131 je slozene zarizeni a modem ma jine atributy. Misto ACTION="add" jeste zkus dat SUBSYSTEM=="tty". Pokud ani to nepomuze, tak budes muset dohledat spravne zarizeni v /sys.

[R]

Riesi sa to instalaciou usb-modeswitch, vytvori ti to symlink /dev/gsmmodem na spravne zariadenie.

[the.max]

Ten tam samozřejmě je.Pokud mám jen jeden modem, tak vím, že je to u /dev/ttyUSB0. Ale mám tam dva různé modemy a po restartu je to sázka do loterie, protože se mezi sebou prohazují a já pak mám problém, protože každý modem mi obsluhuje jiná aplikace a tak ve výsledku mi aplikace A obsluhuje modem B a aplikace B nefunguje, protože se snaží komunikovat s portem pro diagnostiku bo co to na tom modemu je. Proto potřebuju vytvářet symlinky které se mi budou jmenovat vždy stejně a budou ukazovat na správný modem, byť bude zinicializován v libovolném pořadí.

[k3dAR]

nenajdes tu po zasunuti a aktivaci modemu, neco ceho se chytit pri tvorbe pravidla?

udevadm monitor

[the.max]

Po výpadku proudu mi aktuálně symlink /dev/GSM_E3131 ukazuje na /dev/sr1

Zítra zkusím udevadm monitor a pastnu sem výsledek, teď už na to nemám sílu.

[Peter Golis]

Na svete bolo strašne veľa USB GSM/EDGE modemov ktoré sa po pripojení do počítača hlásili ako CD s ovládačmi, a do režimu modem ich prepol až obslužný SW. Na Linuxe sa o to automaticky staral program usb_modeswitch.

[Ivan]

pokud jde o to prepnuti, tak staci "cat" nejaky specialni soubor na tom "CD". Ten soubor se precist nepodari, USB zarizeni se ale odpoji a opet se pripoji s jinym PCI product id (jako modem).

[R]

Nahodou sa mi dostal do ruk prave Huawei E3131. Zapojil som, usb-modeswitch ho prepol a vytvoril sa symlink /dev/gsmmodem -> ttyUSB0. Debian 8.6, kernel 4.8 z backports.

[16176.456293] usb 1-3: new high-speed USB device number 8 using ehci-pci
[16176.609868] usb 1-3: New USB device found, idVendor=12d1, idProduct=15ca
[16176.609883] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[16176.609888] usb 1-3: Product: HUAWEI Mobile
[16176.609893] usb 1-3: Manufacturer: HUAWEI
[16176.609900] usb 1-3: SerialNumber: FFFFFFFFFFFFFFFF
[16176.655949] usb-storage 1-3:1.0: USB Mass Storage device detected
[16176.674020] scsi host4: usb-storage 1-3:1.0
[16177.715558] scsi 4:0:0:0: CD-ROM            HUAWEI   Mass Storage     2.31 PQ: 0 ANSI: 2
[16177.718980] scsi 4:0:0:1: Direct-Access     HUAWEI   TF CARD Storage  2.31 PQ: 0 ANSI: 2
[16177.724576] sr 4:0:0:0: [sr2] scsi-1 drive
[16177.733287] sr 4:0:0:0: Attached scsi CD-ROM sr2
[16177.742733] sr 4:0:0:0: Attached scsi generic sg7 type 5
[16177.750349] sd 4:0:0:1: [sdf] Attached SCSI removable disk
[16177.760590] sd 4:0:0:1: Attached scsi generic sg8 type 0
[16178.569290] sr 4:0:0:0: [sr2] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[16178.569312] sr 4:0:0:0: [sr2] tag#0 Sense Key : Medium Error [current]
[16178.569321] sr 4:0:0:0: [sr2] tag#0 Add. Sense: Unrecovered read error
[16178.569336] sr 4:0:0:0: [sr2] tag#0 CDB: Read(10) 28 00 00 00 ff fe 00 00 02 00
[16178.569348] blk_update_request: critical medium error, dev sr2, sector 262136
[16178.577055] sr 4:0:0:0: [sr2] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[16178.577077] sr 4:0:0:0: [sr2] tag#0 Sense Key : Medium Error [current]
[16178.577089] sr 4:0:0:0: [sr2] tag#0 Add. Sense: Unrecovered read error
[16178.577103] sr 4:0:0:0: [sr2] tag#0 CDB: Read(10) 28 00 00 00 ff fe 00 00 02 00
[16178.577117] blk_update_request: critical medium error, dev sr2, sector 262136
[16178.577144] Buffer I/O error on dev sr2, logical block 32767, async page read
[16178.971605] sr 4:0:0:0: [sr2] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[16178.971623] sr 4:0:0:0: [sr2] tag#0 Sense Key : Medium Error [current]
[16178.971636] sr 4:0:0:0: [sr2] tag#0 Add. Sense: Unrecovered read error
[16178.971650] sr 4:0:0:0: [sr2] tag#0 CDB: Read(10) 28 00 00 00 ff fc 00 00 02 00
[16178.971663] blk_update_request: critical medium error, dev sr2, sector 262128
[16178.978468] sr 4:0:0:0: [sr2] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[16178.978490] sr 4:0:0:0: [sr2] tag#0 Sense Key : Medium Error [current]
[16178.978502] sr 4:0:0:0: [sr2] tag#0 Add. Sense: Unrecovered read error
[16178.978514] sr 4:0:0:0: [sr2] tag#0 CDB: Read(10) 28 00 00 00 ff fc 00 00 02 00
[16178.978526] blk_update_request: critical medium error, dev sr2, sector 262128
[16178.978551] Buffer I/O error on dev sr2, logical block 32766, async page read
[16179.905825] usb 1-3: USB disconnect, device number 8
[16180.752267] usb 1-3: new high-speed USB device number 9 using ehci-pci
[16180.902010] usb 1-3: New USB device found, idVendor=12d1, idProduct=1506
[16180.902024] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[16180.902030] usb 1-3: Product: HUAWEI Mobile
[16180.902035] usb 1-3: Manufacturer: HUAWEI
[16181.239999] usb-storage 1-3:1.4: USB Mass Storage device detected
[16181.249056] scsi host4: usb-storage 1-3:1.4
[16181.250014] usb-storage 1-3:1.5: USB Mass Storage device detected
[16181.256255] scsi host5: usb-storage 1-3:1.5
[16181.811477] usbcore: registered new interface driver usbserial
[16181.814210] usbcore: registered new interface driver usbserial_generic
[16181.815987] usbserial: USB Serial support registered for generic
[16181.996420] usbcore: registered new interface driver option
[16182.001001] usbserial: USB Serial support registered for GSM modem (1-port)
[16182.004831] option 1-3:1.0: GSM modem (1-port) converter detected
[16182.006082] usb 1-3: GSM modem (1-port) converter now attached to ttyUSB0
[16182.008273] option 1-3:1.2: GSM modem (1-port) converter detected
[16182.020262] usb 1-3: GSM modem (1-port) converter now attached to ttyUSB1
[16182.020473] option 1-3:1.3: GSM modem (1-port) converter detected
[16182.021733] usb 1-3: GSM modem (1-port) converter now attached to ttyUSB2
[16182.121051] usbcore: registered new interface driver cdc_ncm
[16182.286564] scsi 5:0:0:0: Direct-Access     HUAWEI   TF CARD Storage  2.31 PQ: 0 ANSI: 2
[16182.290150] scsi 4:0:0:0: CD-ROM            HUAWEI   Mass Storage     2.31 PQ: 0 ANSI: 2
[16182.310466] sd 5:0:0:0: Attached scsi generic sg7 type 0
[16182.310677] sd 5:0:0:0: [sdf] Attached SCSI removable disk
[16182.319470] sr 4:0:0:0: [sr2] scsi-1 drive
[16182.322067] sr 4:0:0:0: Attached scsi CD-ROM sr2
[16182.323401] sr 4:0:0:0: Attached scsi generic sg8 type 5
[16182.350062] usbcore: registered new interface driver cdc_wdm
[16182.511646] huawei_cdc_ncm 1-3:1.1: MAC-Address: xx:xx:xx:xx:xx:xx
[16182.533691] huawei_cdc_ncm 1-3:1.1: NDP will be placed at end of frame for this device.
[16182.534586] huawei_cdc_ncm 1-3:1.1: cdc-wdm1: USB WDM device
[16182.537776] huawei_cdc_ncm 1-3:1.1 wwan0: register 'huawei_cdc_ncm' at usb-0000:00:09.2-3, Huawei CDC NCM device, xx:xx:xx:xx:xx:xx
[16182.543860] usbcore: registered new interface driver huawei_cdc_ncm
[16182.640146] sr 4:0:0:0: [sr2] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[16182.640165] sr 4:0:0:0: [sr2] tag#0 Sense Key : Medium Error [current]
[16182.640179] sr 4:0:0:0: [sr2] tag#0 Add. Sense: Unrecovered read error
[16182.640194] sr 4:0:0:0: [sr2] tag#0 CDB: Read(10) 28 00 00 00 ff fe 00 00 02 00
[16182.640206] blk_update_request: critical medium error, dev sr2, sector 262136
[16182.657671] sr 4:0:0:0: [sr2] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[16182.657695] sr 4:0:0:0: [sr2] tag#0 Sense Key : Medium Error [current]
[16182.657709] sr 4:0:0:0: [sr2] tag#0 Add. Sense: Unrecovered read error
[16182.657724] sr 4:0:0:0: [sr2] tag#0 CDB: Read(10) 28 00 00 00 ff fe 00 00 02 00
[16182.657737] blk_update_request: critical medium error, dev sr2, sector 262136
[16182.657758] Buffer I/O error on dev sr2, logical block 32767, async page read
[16182.866066] sr 4:0:0:0: [sr2] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[16182.866085] sr 4:0:0:0: [sr2] tag#0 Sense Key : Medium Error [current]
[16182.866099] sr 4:0:0:0: [sr2] tag#0 Add. Sense: Unrecovered read error
[16182.866114] sr 4:0:0:0: [sr2] tag#0 CDB: Read(10) 28 00 00 00 ff fc 00 00 02 00
[16182.866126] blk_update_request: critical medium error, dev sr2, sector 262128
[16182.873066] sr 4:0:0:0: [sr2] tag#0 FAILED Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[16182.873085] sr 4:0:0:0: [sr2] tag#0 Sense Key : Medium Error [current]
[16182.873099] sr 4:0:0:0: [sr2] tag#0 Add. Sense: Unrecovered read error
[16182.873114] sr 4:0:0:0: [sr2] tag#0 CDB: Read(10) 28 00 00 00 ff fc 00 00 02 00
[16182.873126] blk_update_request: critical medium error, dev sr2, sector 262128
[16182.873150] Buffer I/O error on dev sr2, logical block 32766, async page read

# ls -la /dev/gsm*
lrwxrwxrwx 1 root root 7 Jan 13 12:41 /dev/gsmmodem -> ttyUSB0