<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta content="text/html;charset=ISO-8859-1" http-equiv="Content-Type"> <title></title> </head> <body> Aleksey Nogin escreveu: <blockquote cite="mid40901646.4080304@nogin.org" type="cite">On 28.04.2004 12:12, Casimiro de Almeida Barreto wrote: <blockquote type="cite">Again, an old nasty problem is back in FC2 test 3: using the latest linux-2.6.5-1.327, when I attach an IOMEGA ZIP CD (USB) (RW) unity to USB port, usb_storage recons it and registers correcty (both at /sys and /proc/...), device /dev/scd0 is active (I can mount, umount and read CDs) and I got a message indicating that it was registered as sr0 (althought I cannot have access do /dev/sr0). But the device is not reconned by sg.ko (is is not registered). </blockquote> Not sure if it is related, but have you looked at bug 121105? </blockquote> It seems to be related. But problem remains. When I dump /proc/bus/usb/devices I get: 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= 1.10 Cls=09(hub ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1 P: Vendor=0000 ProdID=0000 Rev= 2.06 S: Manufacturer=Linux 2.6.5-1.327 uhci_hcd S: Product=UHCI Host Controller S: SerialNumber=0000:00:04.2 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= 2 Ivl=255ms T: Bus=01 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 0 D: Ver= 1.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=059b ProdID=0050 Rev= 1.00 S: Manufacturer=Iomega S: Product=USB Zip CD S: SerialNumber=00000000000000000000 C:* #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr= 0mA I: If#= 0 Alt= 0 #EPs= 3 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=01(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=83(I) Atr=03(Int.) MxPS= 2 Ivl=32ms Then, when I dump /proc/scsi/scsi I get: Attached devices: Host: scsi0 Channel: 00 Id: 00 Lun: 00 Vendor: IOMEGA Model: ZIPCD 650 USB Rev: P1.9 Type: CD-ROM ANSI SCSI revision: 02 Yet, when I dump /proc/scsi/usb_storage/0 I get: Host scsi0: usb-storage Vendor: Iomega Product: USB Zip CD Serial Number: 00000000000000000000 Protocol: Transparent SCSI Transport: Bulk Quirks: But all entries in /proc/scsi/sg are empty !!! So, let's go to /sys/bus/scsi/devices/0:0:0:0/ detach-state: 0 model: ZIPCD 650 USB max-sectors: 240 queue-depth: 1 Rev: P1.9 scsi_level: 3 state: running type: 5 vendor: IOMEGA And I have a "block" symbolic link block -> ../../../../../../../../block/sr0 (that means nothing ...) and so on, so forth. Notice that there is not a char symlink to point to ...sg Best regards, Casimiro </body> </html>