OK I'm back.. Now I've a more than a little out of my depth on this one. I *had* an old DVD-ROM in my USB 2 case before, and after making the bellow suggested changes to my kernel and then I was able to read DVD movies fine..
(from http://search.luky.org/linux-kernel.2004/msg00391.html) > case DVD_READ_STRUCT: { > dvd_struct *s; > int size = sizeof(dvd_struct); > // if (!CDROM_CAN(CDC_DVD)) > // return -ENOSYS; > if ((s = (dvd_struct *) kmalloc(size, > GFP_KERNEL)) == NULL) > return -ENOMEM; > cdinfo(CD_DO_IOCTL, "entering DVD_READ_STRUCT\n"); and > case DVD_AUTH: { > dvd_authinfo ai; > // if (!CDROM_CAN(CDC_DVD)) > // return -ENOSYS; > cdinfo(CD_DO_IOCTL, "entering DVD_AUTH\n"); > IOCTL_IN(arg, dvd_authinfo, ai); > if ((ret = dvd_do_auth (cdi, &ai))) Now, however, i have made the final step and upgraded to a DVD burner (LITEON SOHW-812S) and I'mback where I started, I cannot read DVD movies any more.. I think this is the importand part of the debug: usb-storage: -- code: 0x70, key: 0x5, ASC: 0x6f, ASCQ: 0x3 usb-storage: Illegal Request: Read of scrambled sector without authentication As I still have usb-verbose debug enable in my kernel, here is the rest of it just in case I'm wrong.. (a document defining MCC errors??) Here is the relavent debug.. usb-storage: queuecommand called usb-storage: *** thread awakened. usb-storage: Command READ_10 (10 bytes) usb-storage: 28 00 00 00 2d d7 00 00 02 00 usb-storage: Bulk Command S 0x43425355 T 0x2ca L 4096 F 128 Trg 0 LUN 0 CL 10 usb-storage: usb_stor_bulk_transfer_buf: xfer 31 bytes usb-storage: Status code 0; transferred 31/31 usb-storage: -- transfer complete usb-storage: Bulk command transfer result=0 usb-storage: usb_stor_bulk_transfer_sglist: xfer 4096 bytes, 1 entries usb-storage: Status code -121; transferred 2048/4096 usb-storage: -- short read transfer usb-storage: Bulk data transfer result 0x1 usb-storage: Attempting to get CSW... usb-storage: usb_stor_bulk_transfer_buf: xfer 13 bytes usb-storage: Status code -32; transferred 0/13 usb-storage: clearing endpoint halt for pipe 0xc0040380 usb-storage: usb_stor_control_msg: rq=01 rqtype=02 value=0000 index=88 len=0 usb-storage: usb_stor_clear_halt: result = 0 usb-storage: Attempting to get CSW (2nd try)... usb-storage: usb_stor_bulk_transfer_buf: xfer 13 bytes usb-storage: Status code 0; transferred 13/13 usb-storage: -- transfer complete usb-storage: Bulk status result = 0 usb-storage: Bulk Status S 0x53425355 T 0x2ca R 2048 Stat 0x1 usb-storage: -- transport indicates command failure usb-storage: -- unexpectedly short transfer usb-storage: Issuing auto-REQUEST_SENSE usb-storage: Bulk Command S 0x43425355 T 0x800002ca L 18 F 128 Trg 0 LUN 0 CL 6 usb-storage: usb_stor_bulk_transfer_buf: xfer 31 bytes usb-storage: Status code 0; transferred 31/31 usb-storage: -- transfer complete usb-storage: Bulk command transfer result=0 usb-storage: usb_stor_bulk_transfer_buf: xfer 18 bytes usb-storage: Status code 0; transferred 18/18 usb-storage: -- transfer complete usb-storage: Bulk data transfer result 0x0 usb-storage: Attempting to get CSW... usb-storage: usb_stor_bulk_transfer_buf: xfer 13 bytes usb-storage: Status code 0; transferred 13/13 usb-storage: -- transfer complete usb-storage: Bulk status result = 0 usb-storage: Bulk Status S 0x53425355 T 0x800002ca R 0 Stat 0x0 usb-storage: -- Result from auto-sense is 0 usb-storage: -- code: 0x70, key: 0x5, ASC: 0x6f, ASCQ: 0x3 usb-storage: Illegal Request: Read of scrambled sector without authentication usb-storage: scsi cmd done, result=0x2 usb-storage: *** thread sleeping. end_request: I/O error, dev sr0, sector 46940 Buffer I/O error on device sr0, logical block 11735 Buffer I/O error on device sr0, logical block 11736 Any pointers as to whats going wrong / how to fix?? Mick -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Mick Sent: Sunday, 20 June 2004 9:12 PM To: Brad Campbell; [EMAIL PROTECTED] Subject: RE: [Linux-usb-users] USB DVD > Checkout these 2 excerpts from drivers/cdrom/cdrom.c. Comment out > the bits I have here and you will > be cooking with gas. > > > This seems to be the issue for my DVD troubles. Thanks heaps Brad (title 'usb troubleshooting issues). Stragnly enough xine now plays the disks but mplayer still does not. I will investigate this more thoroughlyand post at a later date. Just like to say "Wow!". Very nice to note have to go tomy garage to change disks now..(is have usb from grage to HT room)Wee! Mick ------------------------------------------------------- This SF.Net email is sponsored by The 2004 JavaOne(SM) Conference Learn from the experts at JavaOne(SM), Sun's Worldwide Java Developer Conference, June 28 - July 1 at the Moscone Center in San Francisco, CA REGISTER AND SAVE! http://java.sun.com/javaone/sf Priority Code NWMGYKND _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users ------------------------------------------------------- This SF.Net email is sponsored by BEA Weblogic Workshop FREE Java Enterprise J2EE developer tools! Get your free copy of BEA WebLogic Workshop 8.1 today. http://ads.osdn.com/?ad_id=4721&alloc_id=10040&op=click _______________________________________________ [EMAIL PROTECTED] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-users
