cvs commit: src/sys/dev/usb umass.c
M. Warner Losh
imp at bsdimp.com
Wed Feb 28 10:13:53 UTC 2007
In message: <200702281302.18223.doconnor at gsoft.com.au>
"Daniel O'Connor" <doconnor at gsoft.com.au> writes:
: On Wednesday 28 February 2007 09:03, Warner Losh wrote:
: > Create a new quirk READ_CAPACITY_OFFBY1 and add a quirk for the
: > SanDISK ImageMate that I have that suffers from this problem (the
: > SDDR-31). It intercepts the READ_CAPACITY response and adjusts it
: > from number of sectors to max sector for devices with this quirk.
: > Reading the Linux source suggests that there are a host of
: > other devices with this issue, including iPods and some popular
: > cameras. I've not added quirks for them, since I don't have the
: > devices in front of me to test.
: Couldn't you automatically test for this? ie try and read the last sector.
: Obviously if there is a real error in the last sector you'd get a bogus result
: but I don't think that is likely to be very common :)
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