devfs usb-storage and scsi

Ozymandias · Posted: Thu Jul 04, 2002 11:44 pm Post subject: devfs usb-storage and scsi

hi there,
I am the lucky owner of a NEX II mp3 player, which can also be used as a portable harddisk via usb and usb-storage. Only whenever I plug it in, devfs doesn't create the needed links. I need a part? in /dev/scsi/host?/bus?/target?/lun?/part? but it never show's until I create anywhere, and mount via, a block device with major 8 and minor 1 (sda1). Then all of a sudden devfs is showing the scsi device part? and disc. How can I tell devfs to do this automatic? I tried putting in devfsd.conf the lines:

pablored · Tux's lil' helper Joined: 01 May 2002 Posts: 96

Did you ever get your NEX sorted?

I am considering purchasing one, any advice now that you have had the player a while?

Thanks.

Ozymandias · Posted: Sun Jul 14, 2002 5:15 pm Post subject:

Yes, It works quite well, only it doesn't get automatically automounted allways, sometimes I have to do It by hand. I like my Nex II, I've seen better players, but most of them have DRM or need a proprietory interface/driver. The good thing about the Nex II is that you plug it in the USB and it works. Quality of the player is good, not superb, but it is a mp3 player, you cannot want super audio quality from it. It is small, solid state, so I use it for jogging and traveling. It kan take any type of data, so you can use it as a little harddisk as whell, which is quite an advantage. I do think that the interface is a but clumsy and badly designed. Not that it is unusable, just clumsy. But the good thing is that I asked them if I could develop for them, they seriously thought about it, we emailed a lot, but it would cost them to much, because I would need a special expensive developers enviroment. But they did take my suggestions seriously, and to come to my point here: There is a change that sooner or later they will release another firmware update which contains some of the things I suggested.

greetz Ozy

pablored · Tux's lil' helper Joined: 01 May 2002 Posts: 96

Nice to hear. Impressive manufacturer communication!

I currently have a DAP PRO (old korean born player) that has little chance of ever forming linux relations. I put the two together but they didn't talk much

.

I do like the look of the NEX, I wish all mp3 players were CF based with no internal memory. Really, I just need a small tough player with 128mb to use at the gym... that works in linux.

reverius42 · Posted: Tue Jul 16, 2002 11:33 pm Post subject: USB-storage and SCSI "part"

"I need a part? in /dev/scsi/host?/bus?/target?/lun?/part? but it never show's until I create anywhere, and mount via, a block device with major 8 and minor 1 (sda1)" ...

I have a usb-scsi device (CompactFlash card reader), and I know it works (it is identified and modules are loaded), but I do not see any "part" in that directory. What command did you use to create a block device w/ major 8 and minor 1? I think I need to do that.
_________________
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Pavan · n00b Joined: 28 Jun 2002 Posts: 25 Location: India

Ozymandias · Posted: Wed Jul 17, 2002 6:12 am Post subject:

you need to compile usb-storage in the usb section, and in the scsi section, you need vendor specific functions and scsi-generic will be helpful (best to do all of these as modules)
then add usb-storage in modules.autoload and maybe scsi-generic in modules.autoload

to make a block (or character) device:
mknod sda1 b 8 1
or sdb1:
mknod sdb1 b 8 17

greetz Ozy

Pavan · n00b Joined: 28 Jun 2002 Posts: 25 Location: India

Yeah, may be I need to autoload usb-storage. Will check it out.

When I 1st tried it, I loaded usb-storage manually. As mentioned by u, the devfs did not show the partitions. The syslog also did not show the partitions. But when I did a mount /dev/sda1 ...., it automatically created the part files in devfs & also logged in the syslog.

How do I do a automount?

-Pavan

Ozymandias · Posted: Wed Jul 17, 2002 7:12 am Post subject:

yannick · Posted: Sun Nov 03, 2002 12:08 am Post subject:

This is a copy-paste of a message I wrote in this thread https://forums.gentoo.org/viewtopic.php?t=15334 over cameras using usb-storage, I think it should apply here too :

Hi,
it is really simple (though I spent a night to find how to use all the functionnality of hotplug) :

Install hotplug and create a new file /etc/hotplug/usb/usb-storage with this in it :

ozric100 · Tux's lil' helper Joined: 23 Apr 2002 Posts: 136

I used this for my PQI... thanks

sklettke · Guru Joined: 05 Nov 2002 Posts: 352 Location: Madison, WI

This is an old thread, so I may have to repost this anew, but from the linux-usb website I found that this 0x0451:0x5409 was the ID for my nex ii player. How do I change that to a format that fits in the hotplug script? Also, that script that is supposed to find the product number for me has never worked. Anyone experience this too?

I can access the nex ii fine by doing a "mount /mnt/nexii", but none of this hotplug stuff is working.

Scott