Bluesheet wrote:
Dear all,
I have a problem about kernel support USB storages, Can we discuss in here?
Thanks.
My discussion subject is kernel option on USB storages.
I want to add USB storages on my kernel 2.4.x, but I have a problem after I
build different version of kernel.
I built 2.4.26, it can support USB storages but when I built kernel 2.4.24,
it can't. Both setting are the same, so I want to know the actual kernel
setting needed for USB storages. I know that USB storages need SCSI module
and USB mass storage module, so I already add this two option in kernel
setting with modules, the following is the snapshot of SCSI and USB setting.
==========================================
<*> SCSI support
--- SCSI support type (disk, tape, CD-ROM)
<M> SCSI disk support
(40) Maximum number of SCSI disks that can be loaded as modules
<M> SCSI tape support
< > SCSI OnStream SC-x0 tape support
<M> SCSI CD-ROM support
[ ] Enable vendor-specific extensions (for SCSI CDROM)
(2) Maximum number of CDROM devices that can be loaded as modules
< > SCSI generic support
--- Some SCSI devices (e.g. CD jukebox) support multiple LUNs
[*] Enable extra checks in new queueing code
[*] Probe all LUNs on each SCSI device
[*] Verbose SCSI error reporting (kernel size +=12K)
[ ] SCSI logging facility
SCSI low-level drivers --->
==========================================
<M> Support for USB
[ ] USB verbose debug messages
--- Miscellaneous USB options
[*] Preliminary USB device filesystem
[ ] Enforce USB bandwidth allocation (EXPERIMENTAL)
--- USB Host Controller Drivers
<M> EHCI HCD (USB 2.0) support (EXPERIMENTAL)
<M> UHCI (Intel PIIX4, VIA, ...) support
<M> UHCI Alternate Driver (JE) support
<M> OHCI (Compaq, iMacs, OPTi, SiS, ALi, ...) support
< > SL811HS Alternate (x86, StrongARM, isosynchronous mode)
< > SL811HS (x86, StrongARM) support, old driver
--- USB Device Class drivers
< > USB Audio support
< > USB Bluetooth support (EXPERIMENTAL)
< > USB MIDI support
<M> USB Mass Storage support
[ ] USB Mass Storage verbose debug
[ ] Datafab MDCFE-B Compact Flash Reader support
[ ] Freecom USB/ATAPI Bridge support
[ ] ISD-200 USB/ATA Bridge support
[ ] Microtech CompactFlash/SmartMedia support
[ ] HP CD-Writer 82xx support
[ ] SanDisk SDDR-09 (and other SmartMedia) support
[ ] SanDisk SDDR-55 SmartMedia support
[ ] Lexar Jumpshot Compact Flash Reader
< > USB Modem (CDC ACM) support
==========================================
During building the kernel, I found there have two situation failed in using
USB drive/USB flash disk.
1/ Plug-in the USB drive/USB flash disk, the system didn't detect the
device, so using "lsmod", didn't load usb-storage module.
2/ Plug-in the USB drive/USB flash disk, the system can detect the device,
using "lsmod", usb-storage loaded into system, but when I mount the usb
device, it occure " mount: /dev/sda1 is not a valid block device".
and loaded modules when the system being started.
Module Size Used by Not tainted
soundcore 5860 0 (autoclean)
serial 52004 0 (autoclean)
8139too 17224 1
mii 3700 0 [8139too]
crc32 3592 0 [8139too]
keybdev 2944 0 (unused)
mousedev 5556 1
hid 24676 0 (unused)
input 5312 0 [keybdev mousedev hid]
usb-uhci 26348 0 (unused)
ehci-hcd 20200 0 (unused)
usbcore 76288 1 [hid usb-uhci ehci-hcd]
ext3 72964 2
jbd 59288 2 [ext3]
Dear all, I want to learn more about kernel. can anyone give me some
suggestions or we can discuss this issue. Thanks.
Regards.
You have to have your module configure file setup correctly, or make
sure you have hotplug setup in both your kernel and the hotplug package.
If you want to do it manually you need to modprobe the usb-storage driver.
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