trouble with samsung drive
Hello!
I got the Samsung flash drive last weekend. It looks like a noname one marked as "Samsung 128MB, Made in Korea" only. It might be something of the K9F28XXX0C series (http://www.samsung.com/Products/Semiconductor/Flash/NAND/128Mbit/K9F2816Q0C/K9F2816Q0C.htm).
I tried to get it working on my old laptop on Sunday but failed. It could be a problem with the USB hub since it is USB 1.1 & the flash drive is reported to be USB 2.0. I searched the web & figured out that Samsung chips must be NAND-compatible. I used DiskOnChip 2000 driver first, but it failed to probe the device (btw, USB hub didn't report any unclaimed devices). Then I tried almost all MTD drivers availble in the standard (kernel.org) kernel distribution (v2.4.20) -- none of them seemed to probe the device successfully. So I have 3 questions:
1) Is this a problem with my old USB hub?
2) Which driver should I use if no?
3) I didn't enable SCSI emulation support in the kernel yet (I decided to leave it for the next step since the device hadn't been detected). Can it be the problem?
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Quoted 3 lines · Matthew Dharm
USB Mass Storage devices aren't handled via the MTD driver, generally. They are handled by the usb-storage driver via SCSI emulation.
Yeah, I figured out that it's an USB mass storage device when plugged it into my FreeBSD desktop at work. It was successfully detected as "Lexar Jumpshot".
Quoted 4 lines
If the device shows up in
/proc/bus/usb/deviceswith class code 8, then the USB low-level is working and it's time to move on to enabling the usb-storage driver.
/proc/bus/usb is empty. So, is this a problem with my USB hub? USB driver loads ok and detects the hub successfully though. My 1st question is still actual then: can USB 1.1 hub cooperate with USB 2.0 devices? The USB driver doesn't report any unclaimed devices as I mentioned in the previous post.
Quoted 3 lines
The place for usb-storage help is [email protected]
Thanks, I'll try this list.
USB Mass Storage devices aren't handled via the MTD driver, generally. They are handled by the usb-storage driver via SCSI emulation.
If the device shows up in /proc/bus/usb/devices with class code 8, then the USB low-level is working and it's time to move on to enabling the usb-storage driver.
The place for usb-storage help is [email protected]
Matt
Quoted 24 lines · dima
Hello!
I got the Samsung flash drive last weekend. It looks like a noname one marked as "Samsung 128MB, Made in Korea" only. It might be something of the K9F28XXX0C series
(http://www.samsung.com/Products/Semiconductor/Flash/NAND/128Mbit/K9F2816Q0C/K9F2816Q0C.htm).
I tried to get it working on my old laptop on Sunday but failed. It could be a problem with the USB hub since it is USB 1.1 & the flash drive is reported to be USB 2.0. I searched the web & figured out that Samsung chips must be NAND-compatible. I used DiskOnChip 2000 driver first, but it failed to probe the device (btw, USB hub didn't report any unclaimed devices). Then I tried almost all MTD drivers availble in the standard (kernel.org) kernel distribution (v2.4.20) -- none of them seemed to probe the device successfully.
So I have 3 questions:
1) Is this a problem with my old USB hub?
2) Which driver should I use if no?
3) I didn't enable SCSI emulation support in the kernel yet (I decided to leave it for the next step since the device hadn't been detected). Can it be the problem?______________________________________________________
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Signature · 2 lines
Matthew Dharm Work: [email protected] Senior Software Designer, Momentum Computer