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usb: f_mass_storage: set removable flag in do_inquiry based on LUN

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Without this flag, tools like Alex Page's USB Image Tool
won't see drives exposed over USB Gadget as removable,
and won't allow access to them.
	http://www.alexpage.de/usb-image-tool/

The code was pulled from the main-line kernel:
	drivers/usb/gadget/function/f_mass_storage.c

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
This commit is contained in:
Eric Nelson 2014-09-19 17:06:46 -07:00 committed by Marek Vasut
parent ece91016c4
commit f9935c87b6
1 changed files with 1 additions and 0 deletions
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drivers/usb/gadget/f_mass_storage.c
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@ -1110,6 +1110,7 @@ static int do_inquiry(struct fsg_common *common, struct fsg_buffhd *bh)
memset(buf, 0, 8);
buf[0] = TYPE_DISK;
buf[1] = curlun->removable ? 0x80 : 0;
buf[2] = 2; /* ANSI SCSI level 2 */
buf[3] = 2; /* SCSI-2 INQUIRY data format */
buf[4] = 31; /* Additional length */