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Drew, > Is anyone aware of a method that a CD ROM drive can use to indicate its > support for SCSI standards. Once you determine that a device supports the PACKET command set, it is safe to assume the device supports the SCSI command op x12 INQUIRY as defined in SPC. This leap is courtesy of the following from SPC-2 (T10/1236-D Revision 20 pg. 19): This standard defines three commands that all SCSI device servers shall implement - INQUIRY, REQUEST SENSE, and TEST UNIT READY. These commands are used to configure the system, to test devices, and to return important information concerning errors and exception conditions. The INQUIRY response data reflects the command sets supported by the device. Regards, David Hawks -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Andrew Hill Sent: Monday, March 08, 2004 4:19 PM To: [EMAIL PROTECTED] Subject: [t13] Checking for supported SCSI standards? This message is from the T13 list server. Hi, I was just looking at how to interface my ATA module with the CD ROM commandset SCSI-MMC 4. Clearly you send information to the device using the PACKET COMMANDSET. However, what concerns me is that there appears to be no way of indicating which commandsets are supported by an ATAPI commandset. Is anyone aware of a method that a CD ROM drive can use to indicate its support for SCSI standards. If not, this is possibly another area in which we could improve the specification. Best wishes, Drew
