Date: Mon, 19 Apr 2004 22:47:48 +0930 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: freebsd-hackers@freebsd.org Subject: Detecting 'floppy' like umass devices Message-ID: <200404192247.48015.doconnor@gsoft.com.au>
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A friend of mine handed me a USB flash key today that has 2 'partition' - one 1.44Mb chunk pretends to be a floppy drive and the rest is a normal umass device. I am wondering if there is any way of telling if a given umass device is a floppy drive (or wants to look like one) - eg I have a USB FDD which I imagine should fall into the same basket. I note that you get wacky values from fdisk when you try and read partition table from them too.. On another note my USB floppy drive does 2k/sec in FreeBSD :( It's one of these -> Apr 19 22:45:32 inchoate kernel: umass0: NEC NEC USB UF000x, rev 1.10/1.50, addr 2 Apr 19 22:45:33 inchoate kernel: (probe0:umass-sim0:0:0:0): INQUIRY. CDB: 12 0 0 0 24 0 Apr 19 22:45:33 inchoate kernel: (probe0:umass-sim0:0:0:0): CAM Status: SCSI Status Error Apr 19 22:45:33 inchoate kernel: (probe0:umass-sim0:0:0:0): SCSI Status: Check Condition Apr 19 22:45:33 inchoate kernel: (probe0:umass-sim0:0:0:0): UNIT ATTENTION asc:29,0 Apr 19 22:45:33 inchoate kernel: (probe0:umass-sim0:0:0:0): Power on, reset, or bus device reset occurred Apr 19 22:45:33 inchoate kernel: (probe0:umass-sim0:0:0:0): Retrying Command (per Sense Data) Apr 19 22:45:35 inchoate kernel: da0 at umass-sim0 bus 0 target 0 lun 0 Apr 19 22:45:35 inchoate kernel: da0: <NEC USB UF000x 1.50> Removable Direct Access SCSI-0 device Apr 19 22:45:35 inchoate kernel: da0: 1.000MB/s transfers Apr 19 22:45:35 inchoate kernel: da0: 1MB (2880 512 byte sectors: 64H 32S/T 1C) Apr 19 22:45:36 inchoate kernel: umass0: Unsupported UFI command 0x35 Apr 19 22:45:36 inchoate kernel: (da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x6, scsi status == 0x0 Apr 19 22:45:36 inchoate kernel: umass0: Unsupported UFI command 0x35 Apr 19 22:45:36 inchoate kernel: (da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x6, scsi status == 0x0 I have a Dell Inspiron 8600 with a uhci0: <Intel 82801DB (ICH4) USB controller USB-A> port 0xbf80-0xbf9f irq 11 at device 29.0 on pci0 I have tried a USB flash card reader which gets ~500k/sec. -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 9A8C 569F 685A D928 5140 AE4B 319B 41F4 5D17 FDD5
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