Messages in this thread | | | Date | Thu, 25 Nov 1999 15:53:43 +0100 (MET) | From | Tassa Sandro <> | Subject | Question about sg_utils |
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Hi all, I'm studing how and 'trying to write' a scsi driver. To test driver's performance now I'm working with sg_utils < of Gilbert >. When I use sg_dd512 all work fine! But (there's always a but) when I use sg_dd2048 (on the same device with the same driver) I see that it writes and correctly reads only the first 2048 byte after that, it doesn't behave as I think: it writes and reads rubbish!
Questions: Is it correct using sg_dd2048 on devices with sector size = 512?
I have seen that the difference between sg_dd512 and sg_dd2048 is in the scsi cmnd (in the 'transfert lenght' field), where sg_ddXXXX writes the number of blocks. Who have to handle this value?
Thanks, Sandro
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