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| author | Alan Stern <stern@rowland.harvard.edu> | 2006-03-23 15:05:16 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-04-14 11:12:20 -0700 |
| commit | 70ffe6e14d7c5db84b92841471ce6fd0200010cd (patch) | |
| tree | bc77a5b2a140cc00518aae2518d671e8911eddd7 /drivers/usb/gadget/file_storage.c | |
| parent | 7e1c0b86aca9d42fa4de3fdad17c57bb462fe1e2 (diff) | |
| download | blackbird-op-linux-70ffe6e14d7c5db84b92841471ce6fd0200010cd.tar.gz blackbird-op-linux-70ffe6e14d7c5db84b92841471ce6fd0200010cd.zip | |
[PATCH] USB: g_file_storage: Set short_not_ok for bulk-out transfers
I'm told that some UDC hardware may work better if it knows that
receiving a short packet should always cause an error. Accordingly,
this patch (as663) sets the short_not_ok flag for bulk-out transfers in
g_file_storage. Oddly enough, there are no circumstances where that
driver can legally receive a shorter-than-expected bulk-out packet.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/gadget/file_storage.c')
| -rw-r--r-- | drivers/usb/gadget/file_storage.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c index cf3be299e353..eb2821542b7c 100644 --- a/drivers/usb/gadget/file_storage.c +++ b/drivers/usb/gadget/file_storage.c @@ -1795,6 +1795,7 @@ static int do_write(struct fsg_dev *fsg) * the bulk-out maxpacket size */ bh->outreq->length = bh->bulk_out_intended_length = amount; + bh->outreq->short_not_ok = 1; start_transfer(fsg, fsg->bulk_out, bh->outreq, &bh->outreq_busy, &bh->state); fsg->next_buffhd_to_fill = bh->next; @@ -2398,6 +2399,7 @@ static int throw_away_data(struct fsg_dev *fsg) * the bulk-out maxpacket size */ bh->outreq->length = bh->bulk_out_intended_length = amount; + bh->outreq->short_not_ok = 1; start_transfer(fsg, fsg->bulk_out, bh->outreq, &bh->outreq_busy, &bh->state); fsg->next_buffhd_to_fill = bh->next; @@ -3029,6 +3031,7 @@ static int get_next_command(struct fsg_dev *fsg) /* Queue a request to read a Bulk-only CBW */ set_bulk_out_req_length(fsg, bh, USB_BULK_CB_WRAP_LEN); + bh->outreq->short_not_ok = 1; start_transfer(fsg, fsg->bulk_out, bh->outreq, &bh->outreq_busy, &bh->state); |
