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Having trouble installing a piece of hardware? Want to know if that peripheral is compatible with Linux?


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Old 08-28-2012, 11:09 AM   #1
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is it possible to use dreamplug with armel?

I'm using a dreamplug with debian

~$ uname -a
Linux sheevaplug-debian #1 PREEMPT Tue Feb 8 03:18:41 EST 2011 armv5tel GNU/Linux
But I'm having some issues with a usb dongle that when connected won't set up serial ports (and I need them to send some SMSs with AT commands).

I have tested the modem with a beagleboard and it works like a charm so would like to know how the support for dreamplug is with armel? And if there are instructions available on how to configure one distro on it.

Thanks in advance.
Old 08-29-2012, 08:12 AM   #2
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You will need to know something about the USB dongle. By your description, it sounds like it is a serial port dongle. There are two most commonly supported versions of this category of device, each based on the chip used in the dongle. One is a FTDI chip, probably the most common, and generally well supported in Linux. The other, I cannot remember right now. In any case, there will be a driver that needs to be loaded. In the case of the FTDI chip, the driver is called 'ftdi_sio', and it requires 'usbserial', and 'usbcore'. If your system was configured in the usual way (and assuming the FTDI dongle type), loading the driver may be as simple as
modprobe ftdi_sio
Further suggestions are somewhat pointless without knowing more details about your dongle. If it is in fact a serial dongle but the dongle is an unsupported type, it may be simplest to get a different one, which is supported. These are quite common and generally not expensive.

--- rod.
Old 08-29-2012, 09:33 AM   #3
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Connected the dongle, modprobed the module

From dmesg
usb 1-1.2: new high speed USB device using orion-ehci and address 6
scsi4 : usb-storage 1-1.2:1.0
scsi5 : usb-storage 1-1.2:1.1
scsi 4:0:0:0: CD-ROM            HUAWEI   Mass Storage     2.31 PQ: 0 ANSI: 2
scsi 5:0:0:0: Direct-Access     HUAWEI   MMC Storage      2.31 PQ: 0 ANSI: 2
sd 5:0:0:0: Attached scsi generic sg2 type 0
sr0: scsi-1 drive
sd 5:0:0:0: [sdc] Attached SCSI removable disk
sr 4:0:0:0: Attached scsi CD-ROM sr0
sr 4:0:0:0: Attached scsi generic sg3 type 5
usbcore: registered new interface driver usbserial
USB Serial support registered for generic
usbcore: registered new interface driver usbserial_generic
usbserial: USB Serial Driver core
USB Serial support registered for FTDI USB Serial Device
usbcore: registered new interface driver ftdi_sio
ftdi_sio: v1.5.0:USB FTDI Serial Converters Driver
Still no ttyUSB* devices... and by the way, that module gets loaded on my x86 box when I connect the dongle.... would expect the beagleboard to do the same.... but the dreamplug doesn't care much about the dongle, apparently.


armel, dreamplug

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