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When I install my video camera's drivers with a command:

modprobe usbserial vendor=... product=...

it gets installed as "sg3" instead of something like "ttyUSB0". Why is that?

I did look at the dmesg, it looks like this (this is where I got that it is sg3, I am not a daily linux user, I just need to get something done, so please don't judge me for my poor knowledge):

[  292.940045] usb 2-4: new high speed USB device using ehci_hcd and address 7
[  293.094070] usb-storage 2-4:1.0: Quirks match for vid 0525 pid a4a5: 10000
[  293.094125] scsi7 : usb-storage 2-4:1.0
[  294.095461] scsi 7:0:0:0: Direct-Access     Linux    File-Stor Gadget 031a PQ: 0 ANSI: 2
[  294.096689] sd 7:0:0:0: Attached scsi generic sg3 type 0
[  294.103465] sd 7:0:0:0: [sdc] 838860800 512-byte logical blocks: (429 GB/400 GiB)
[  294.208275] sd 7:0:0:0: [sdc] Write Protect is on
[  294.208284] sd 7:0:0:0: [sdc] Mode Sense: 0f 00 80 00
[  294.208290] sd 7:0:0:0: [sdc] Assuming drive cache: write through
[  294.318200] sd 7:0:0:0: [sdc] Assuming drive cache: write through
[  294.318222]  sdc:
[  294.428212] sd 7:0:0:0: [sdc] Assuming drive cache: write through
[  294.428225] sd 7:0:0:0: [sdc] Attached SCSI removable disk
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That sounds a bit strange. Did you look in your logs (dmesg/var/log/messages)? –  Mat Apr 30 '12 at 8:26
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Loading a serial driver and getting a SCSI node instead of a video node. Yeah, NOTHING about this question seems COMPLETELY MESSED UP... –  Ignacio Vazquez-Abrams Apr 30 '12 at 8:29
    
what distro you use? –  XinHua Apr 30 '12 at 8:46
    
I added some more info to the question. Sorry, @Ignacio Vasquez-Abrams that my question is SO MESSED UP, that you had to write it in the block letters. Perhaps I am doing sth wrong when installing the drivers, but I didn't think there was much to do wrong. –  Magda Apr 30 '12 at 10:55
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It could be that the camera has different modes like usb surf stick which could appear as a storage device and as serial device. Have a look at usb_modeswitch and askubuntu.com/questions/89629/… –  jofel Apr 30 '12 at 11:51
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closed as not a real question by Gilles, Ulrich Dangel, jasonwryan, warl0ck, Mat Sep 22 '12 at 14:46

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