diff options
Diffstat (limited to 'drivers/usb/host/whci/whcd.h')
| -rw-r--r-- | drivers/usb/host/whci/whcd.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/host/whci/whcd.h b/drivers/usb/host/whci/whcd.h index 24e94d983c5e..c80c7d93bc4a 100644 --- a/drivers/usb/host/whci/whcd.h +++ b/drivers/usb/host/whci/whcd.h @@ -84,6 +84,11 @@ struct whc { * @len: the length of data in the associated TD. * @ntds_remaining: number of TDs (starting from this one) in this transfer. * + * @bounce_buf: a bounce buffer if the std was from an urb with a sg + * list that could not be mapped to qTDs directly. + * @bounce_sg: the first scatterlist element bounce_buf is for. + * @bounce_offset: the offset into bounce_sg for the start of bounce_buf. + * * Queued URBs may require more TDs than are available in a qset so we * use a list of these "software TDs" (sTDs) to hold per-TD data. */ @@ -97,6 +102,10 @@ struct whc_std { int num_pointers; dma_addr_t dma_addr; struct whc_page_list_entry *pl_virt; + + void *bounce_buf; + struct scatterlist *bounce_sg; + unsigned bounce_offset; }; /** |