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USB: add support for Motorola ROKR Z6 cellphone in mass storage mode

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Motorola ROKR Z6 cellphone has bugs in its USB, so it is impossible to use
it as mass storage. Patch describes new "unusual" USB device for it with
FIX_INQUIRY and FIX_CAPACITY flags and new BULK_IGNORE_TAG flag.
Last flag relaxes check for equality of bcs->Tag and us->tag in
usb_stor_Bulk_transport routine.

Signed-off-by: Constantin Baranov <[email protected]>
Signed-off-by: Matthew Dharm <[email protected]>
Signed-off-by: Daniel Drake <[email protected]>
Cc: stable <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Constantin Baranov 2008-03-16 20:04:23 +00:00 • committed by Greg Kroah-Hartman
commit cc36bdd47a
3 changed files with 16 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

3
drivers/usb/storage/transport.c
View file

@ -1009,7 +1009,8 @@ int usb_stor_Bulk_transport(struct scsi_cmnd *srb, struct us_data *us)
US_DEBUGP("Bulk Status S 0x%x T 0x%x R %u Stat 0x%x\n",
le32_to_cpu(bcs->Signature), bcs->Tag,
residue, bcs->Status);
if (bcs->Tag != us->tag || bcs->Status > US_BULK_STAT_PHASE) {
if (!(bcs->Tag == us->tag || (us->flags & US_FL_BULK_IGNORE_TAG)) ||
bcs->Status > US_BULK_STAT_PHASE) {
US_DEBUGP("Bulk logical error\n");
return USB_STOR_TRANSPORT_ERROR;
}

11
drivers/usb/storage/unusual_devs.h
View file

@ -1589,6 +1589,17 @@ UNUSUAL_DEV( 0x22b8, 0x4810, 0x0001, 0x0001,
US_SC_DEVICE, US_PR_DEVICE, NULL,
US_FL_FIX_CAPACITY),
/*
* Patch by Constantin Baranov <const@tltsu.ru>
* Report by Andreas Koenecke.
* Motorola ROKR Z6.
*/
UNUSUAL_DEV( 0x22b8, 0x6426, 0x0101, 0x0101,
"Motorola",
"MSnc.",
US_SC_DEVICE, US_PR_DEVICE, NULL,
US_FL_FIX_INQUIRY | US_FL_FIX_CAPACITY | US_FL_BULK_IGNORE_TAG),
/* Reported by Radovan Garabik <[email protected]> */
UNUSUAL_DEV( 0x2735, 0x100b, 0x0000, 0x9999,
"MPIO",