Hi,
how does usb-storage remove an unplugged/removed drive from
/proc/scsi/scsi? I tried
http://www.garloff.de/kurt/linux/rescan-scsi-bus.sh
This does not remove the host, it does only clear the values:
smirnow:~ # cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: IBM Model: DNES-309170W Rev: SAH0
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 06 Lun: 00
Vendor: TEAC Model: CD-ROM CD-532S Rev: 1.0A
Type: CD-ROM ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: IBM-DTTA Model: -350640 Rev: 0811
Type: Direct-Access ANSI SCSI revision: 02
smirnow:~ # cat /proc/bus/usb/devices /proc/version
T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
D: Ver= 1.00 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
P: Vendor=0000 ProdID=0000 Rev= 0.00
S: Product=USB UHCI Root Hub
S: SerialNumber=b400
C:* #Ifs= 1 Cfg#= 1 Atr=40 MxPwr= 0mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=09(hub ) Sub=00 Prot=00 Driver=hub
E: Ad=81(I) Atr=03(Int.) MxPS= 8 Ivl=255ms
T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 11 Spd=12 MxCh= 0
D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=05e3 ProdID=0701 Rev= 0.02
S: Manufacturer=Genesyslogic
S: Product=USB Mass Storage Device
C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 4mA
I: If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E: Ad=81(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms
E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms
Linux version 2.4.20-usbtest ([EMAIL PROTECTED]) (gcc version 3.3 (SuSE Linux)) #1 Fri
Jun 6 17:36:20 UTC 2003
hub.c: new USB device 00:04.2-1, assigned address 11
usb.c: USB device 11 (vend/prod 0x5e3/0x701) is not claimed by any active driver.
Initializing USB Mass Storage driver...
usb.c: registered new driver usb-storage
scsi1 : SCSI emulation for USB Mass Storage devices
Vendor: IBM-DTTA Model: -350640 Rev: 0811
Type: Direct-Access ANSI SCSI revision: 02
Attached scsi disk sdb at scsi1, channel 0, id 0, lun 0
SCSI device sdb: 12692736 512-byte hdwr sectors (6499 MB)
sdb: sdb1
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 11
USB Mass Storage support registered.
Now, if I remove the disk:
usb.c: USB disconnect on device 00:04.2-1 address 11
smirnow:~ # rescan-scsi-bus.sh -r 1
Scanning for device 1 0 0 0 ...
OLD: Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: Model: Rev:
Type: Direct-Access ANSI SCSI revision: 02
0 new device(s) found.
0 device(s) removed.
smirnow:~ # cat /proc/scsi/scsi
Attached devices:
Host: scsi0 Channel: 00 Id: 00 Lun: 00
Vendor: IBM Model: DNES-309170W Rev: SAH0
Type: Direct-Access ANSI SCSI revision: 03
Host: scsi0 Channel: 00 Id: 06 Lun: 00
Vendor: TEAC Model: CD-ROM CD-532S Rev: 1.0A
Type: CD-ROM ANSI SCSI revision: 02
Host: scsi1 Channel: 00 Id: 00 Lun: 00
Vendor: Model: Rev:
Type: Direct-Access ANSI SCSI revision: 02
ieee1394/sbp2 would remove the 'scsi1' entry.
rmmod would be the only option, but that would not work if there is
another usb-storage device connected.
Is this a bug in usb-storage?
Kernel is 2.4.21-rc7
Gruss Olaf
--
USB is for mice, FireWire is for men!
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