5. Compact Flash Reader Writer IO DATA USB-CFRW http://www.iodata.co.jp/products/pccard/2001/usbcfrw.htm umass0: vendor 0x090c C edr, rev 1.00/1.00, addr 3 da0 at umass-sim0 bus 0 target 0 lun 0 da0: < CF Reader 1.05> Removable Direct Access SCSI-0 device da0: 1.000MB/s transfers da0: 61MB (125440 512 byte sectors: 64H 32S/T 61C) (da0:umass-sim0:0:0:0): READ(6)/WRITE(6) not supported, increasing minimum_cmd_size to 10. port 2 addr 3: full speed, power 100 mA, config 1, C edr(0x0230), vendor 0x090c(0x090c), rev 1.00 current では問題なく動作. sysctl -w kern.cam.da.no_6_byte=1すること 4.7は不安定ではないという追加情報あり 4.7-RELEASE で失敗したときの dmesg umass0: C edr, rev 1.00/1.00, addr 2 da0 at umass-sim0 bus 0 target 0 lun 0 da0: < CF Reader 1.05> Removable Direct Access SCSI-0 device da0: 650KB/s transfers da0: Attempt to query device size failed: NOT READY, Medium not present