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#1 2009-07-10 19:30:00
- Fixed
- Member
- Registered: 2005-08-09
- Posts: 210
USB modem is not recognized as /dev/ttyACM0
Hi there,
I've got C-motech CNU-680 USB CDMA modem working under Windows, which I am trying to install under Arch64.
First problem it is not recognized as /dev/ttyACM0
Any ideas?
Below are some outputs:
$ lsusb
Bus 002 Device 002: ID 16d8:6803 CMOTECH Co., Ltd. CNU-680 CDMA EV-DO modem
Bus 002 Device 003: ID 0458:0056 KYE Systems Corp. (Mouse Systems) Ergo 300 Mouse
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 0c45:62c0 Microdia Sonix USB 2.0 Camera
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubPortion of /var/log/messages :
Jul 10 22:55:08 papa kernel: scsi 4:0:0:0: CD-ROM CMOTECH Mass Storage 2.31 PQ: 0 ANSI: 0 CCS
Jul 10 22:55:08 papa kernel: sr1: scsi3-mmc drive: 0x/0x caddy
Jul 10 22:55:08 papa kernel: sr 4:0:0:0: Attached scsi generic sg2 type 5
Jul 10 22:54:55 papa load-modules.sh: 'platform:regulatory' is not a valid module or alias name
Jul 10 22:54:55 papa load-modules.sh: 'ssb:v4243id0817rev04' is not a valid module or alias name
Jul 10 22:54:57 papa load-modules.sh: 'acpi:LNXSYSTM:' is not a valid module or alias name
Jul 10 22:54:57 papa load-modules.sh: 'pci:v000010DEd000002F0sv0000103Csd000030B7bc05sc00i00' is not a valid module or alias name
Jul 10 22:54:57 papa load-modules.sh: 'pci:v000010DEd00000260sv0000103Csd000030B7bc06sc01i00' is not a valid module or alias name
Jul 10 22:54:57 papa load-modules.sh: 'pci:v000010DEd000002F9sv0000103Csd000030B7bc05sc00i00' is not a valid module or alias name
Jul 10 22:54:57 papa load-modules.sh: 'pci:v000010DEd000002FAsv0000103Csd000030B7bc05sc00i00' is not a valid module or alias name
Jul 10 22:54:57 papa load-modules.sh: 'pci:v000010DEd0000027Esv00000000sd00000000bc05sc00i00' is not a valid module or alias name
Jul 10 22:54:57 papa load-modules.sh: 'pci:v000010DEd00000270sv0000103Csd000030B7bc05sc00i00' is not a valid module or alias name
Jul 10 22:54:57 papa load-modules.sh: 'pci:v000010DEd00000271sv0000103Csd000030B7bc0Bsc40i00' is not a valid module or alias name
Jul 10 22:54:57 papa load-modules.sh: 'pci:v000010DEd000002FFsv0000103Csd000030B7bc05sc00i00' is not a valid module or alias name
Jul 10 22:54:57 papa load-modules.sh: 'pci:v000010DEd0000026Fsv00000000sd00000000bc06sc04i01' is not a valid module or alias name
Jul 10 22:54:57 papa load-modules.sh: 'pci:v000010DEd000002FEsv0000103Csd000030B7bc05sc00i00' is not a valid module or alias name
Jul 10 22:54:57 papa load-modules.sh: 'pci:v000010DEd0000027Fsv0000103Csd000030B7bc05sc00i00' is not a valid module or alias name
Jul 10 22:54:57 papa load-modules.sh: 'pci:v000010DEd000002F8sv0000103Csd000030B7bc05sc00i00' is not a valid module or alias name# ls /dev/
adsp core gpmctl loop4 nvidiactl sda1 sr1 tty15 tty27 tty39 tty50 tty62 usbdev1.3 v4l
audio cpu_dma_latency hidraw0 loop5 port sda2 stderr tty16 tty28 tty4 tty51 tty63 usbdev1.3_ep00 vc
block disk hwrng loop6 ppp sda3 stdin tty17 tty29 tty40 tty52 tty7 usbdev1.3_ep83 vcc
bsg dsp initctl loop7 psaux sequencer stdout tty18 tty3 tty41 tty53 tty8 usbdev2.1 video
bus dvd input mcelog ptmx sequencer2 tts tty19 tty30 tty42 tty54 tty9 usbdev2.1_ep00 video0
cd dvd0 kmem mem pts sg0 tty tty2 tty31 tty43 tty55 ttyS0 usbdev2.1_ep81 zero
cdrom dvdrw kmsg misc random sg1 tty0 tty20 tty32 tty44 tty56 ttyS1 usbdev2.2
cdrom0 dvdrw0 log mixer root sg2 tty1 tty21 tty33 tty45 tty57 ttyS2 usbdev2.2_ep00
cdrom1 fb loop net rtc shm tty10 tty22 tty34 tty46 tty58 ttyS3 usbdev2.2_ep07
cdrw fb0 loop0 network_latency rtc0 snapshot tty11 tty23 tty35 tty47 tty59 urandom usbdev2.2_ep86
cdrw0 fd loop1 network_throughput scd0 snd tty12 tty24 tty36 tty48 tty6 usbdev1.1 usbdev2.3
char full loop2 null scd1 sound tty13 tty25 tty37 tty49 tty60 usbdev1.1_ep00 usbdev2.3_ep00
console fuse loop3 nvidia0 sda sr0 tty14 tty26 tty38 tty5 tty61 usbdev1.1_ep81 usbdev2.3_ep81Modules and daemons sections of /etc/rc.conf:
MODULES=(forcedeth snd-hda-intel nvidia b43 uvcvideo !snd_pcsp cdc_acm)
DAEMONS=(syslog-ng hal gpm fam cups alsa wicd )#dmesg | tail
usb 2-2: new full speed USB device using ohci_hcd and address 4
usb 2-2: configuration #1 chosen from 1 choice
scsi6 : SCSI emulation for USB Mass Storage devices
usb-storage: device found at 4
usb-storage: waiting for device to settle before scanning
scsi 6:0:0:0: CD-ROM CMOTECH Mass Storage 2.31 PQ: 0 ANSI: 0 CCS
sr1: scsi3-mmc drive: 0x/0x caddy
sr 6:0:0:0: Attached scsi CD-ROM sr1
sr 6:0:0:0: Attached scsi generic sg2 type 5
usb-storage: device scan completeXFCE4 under Arch on Honor MagicBook
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#2 2009-07-10 20:00:51
- djszapi
- Member
- From: Cambridge, United Kingdom
- Registered: 2009-06-14
- Posts: 1,439
- Website
Re: USB modem is not recognized as /dev/ttyACM0
Have it ever worked ? E.g. on a livecd, ubuntu, sushe or something ?
Is it an udev rules for it to create the desired /dev//dev/ttyACM0 for the device ?
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#3 2009-07-10 20:15:16
- Fixed
- Member
- Registered: 2005-08-09
- Posts: 210
Re: USB modem is not recognized as /dev/ttyACM0
Have it ever worked ? E.g. on a livecd, ubuntu, sushe or something ?
Yes, under at least Ubuntu. The modem even has built-in flash memory containing script and code for older Ubuntu.
It fails to work under Arch, however.
Is it an udev rules for it to create the desired /dev//dev/ttyACM0 for the device ?
I am not sure -- not that proficient.
XFCE4 under Arch on Honor MagicBook
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#4 2009-07-11 15:35:48
- djszapi
- Member
- From: Cambridge, United Kingdom
- Registered: 2009-06-14
- Posts: 1,439
- Website
Re: USB modem is not recognized as /dev/ttyACM0
http://wiki.archlinux.org/index.php/Udev
Udev establishes the nodes n /dev recently, without a good rule for it, it won't appear there. Look for this on Ubuntu too, and if there is there copy it to arch to try e.g.
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