Hi! I have a USB device (GPS receiver) which I want to connect to my Android 3.2 tablet. The device is somehow recognized by the system and a ttyACM0 node is created in /dev. But here my problem starts: how can I get access to / dev/ttyACM0 without root access rights? I also tried to use the UsbManager etc. from the API, but here the device is not listed. Another program from the market (USB Device Info) also couldn't find the device via API but only by parsing /sys/bus/usb/devices/.
Is there a way to send/receive data to/from the device without rooting the tab? The tab is a Huawei MediaPad. Here is an excerpt from dmesg: <6>[ 2781.888427] msm_hsusb_host msm_hsusb_host.0: Qualcomm On-Chip EHCI Host Controller <6>[ 2781.897521] msm_hsusb_host msm_hsusb_host.0: new USB bus registered, assigned bus number 1 <6>[ 2781.905059] msm_hsusb_host msm_hsusb_host.0: irq 132, io base 0x12500000 <6>[ 2781.911712] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 <6>[ 2781.918243] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 <6>[ 2781.928039] usb usb1: Product: Qualcomm On-Chip EHCI Host Controller <6>[ 2781.933380] usb usb1: Manufacturer: Linux 2.6.35.11 ehci_hcd <6>[ 2781.938995] usb usb1: SerialNumber: msm_hsusb_host.0 <6>[ 2781.946319] hub 1-0:1.0: USB hub found <6>[ 2781.949035] hub 1-0:1.0: 1 port detected <6>[ 2786.151489] msm_otg_suspend: usb in low power mode <6>[ 2786.842376] cpufreq: cpu 1 is not active. <6>[ 2789.192687] msm_otg_resume: usb exited from low power mode <6>[ 2789.349945] usb 1-1: new full speed USB device using msm_hsusb_host and address 2 <6>[ 2789.507843] usb 1-1: New USB device found, idVendor=152a, idProduct=8230 <6>[ 2789.513580] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0 <6>[ 2789.530883] usb 1-1: Product: Septentrio USB Device <6>[ 2789.534729] usb 1-1: Manufacturer: Septentrio <6>[ 2789.543395] cdc_acm 1-1:1.0: ttyACM0: USB ACM device I hope you can help me.... So long, Nico -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
