With Kernel 2.6.1 and higher, when I mount a file system from a write protected
USB mass-storage device, the file system will be mounted READ/WRITE (RW)
instead of READ ONLY (RO).
With Kernel 2.6.0 this was not a problem, the file system was mounted RO.
In the file drivers/usb/storage/scsiglue.c of Kernels 2.6.1, 2.6.2 and 2.6.3-rc1 I found the following lines:
/* modify scsi_device bits on probe */
.flags = (BLIST_MS_SKIP_PAGE_08 | BLIST_MS_SKIP_PAGE_3F |
BLIST_USE_10_BYTE_MS),I changed this to:
/* modify scsi_device bits on probe */
.flags = (BLIST_MS_SKIP_PAGE_08 | BLIST_USE_10_BYTE_MS),Now a write protected file system will be mounted RO, as it should be. Only on a write protected device, of course.
I have tested this with an FUJITSU DynaMO 640 Pocket (USB 1.1),
http://www.fujitsu.com/services/computing/storage/mo/dynamo640pocket/
an Transcend 128MB JetFlash USB stick (USB 1.1), an no name 128MB USB stick (USB 1.1) and an ADTEC 256MB AD-UDSW USB stick (USB 2.0).
Best regards
Jürgen Heinrich
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