Alan Stern wrote: > On Wed, 17 Mar 2010, Miika Keskinen wrote: > > >> Hi, >> >> I'm toying with net2272 and g_file_storage. My Intention is to boot a >> x86 machine from file_storage gadget. Some machines do boot fine and >> other won't (they do boot from an usb-stick anyways and if booted up, >> the file_storage does function just fine). Usb_msc_boot_1.0.pdf section >> 4.1.1 (flexible disk mode page) does state that: >> >> -- >> Support for the Flexible Disk Mode Page is required for all devices with >> a Peripheral Device Type other >> than 05h. The FDMP provides the geometry that is necessary for >> translating a CHS address to a SCSI >> standard logical block address. >> -- >> >> I haven't have time yet to implement that into a file_storage and see if >> it makes a difference, but I'm asking if any of you have had similar >> problems and/or have some ideas what might be wrong? >> > > You can get more information about what's going wrong if you enable > verbose debugging in file_storage.c (uncomment the #define near the > start of the file). Then you'll be able to see if the gadget receives > a MODE SENSE command for that page. > Thanks I was using older version of the file_storage.c where 'generic' cmnd_size <= fsg->cmnd_size 'workaround' wasn't implemented. It turned out that most of the bioses use fsg->cmnd_size==12 for every SC_*. problem solved :) -- Miika Keskinen -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
