diff options
| author | Jean-Francois Moine <moinejf@free.fr> | 2008-09-03 17:12:19 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-09-03 18:37:42 -0300 |
| commit | 8295d99ee5340f1e62b53c8adc979e0789299445 (patch) | |
| tree | d537fd27c8079bec09b513845dc2cf9c21234482 /drivers/media/video/gspca/gspca.h | |
| parent | 91de65ac00f976c972940bedd9dbfe38bb8bfec3 (diff) | |
V4L/DVB (8829): gspca: Have a clean kmalloc-ated buffer for USB exchanges.
The USB buffer may be used for DMA and there may be a caching problem
if the buffer is part of the device structure.
Thanks to Alan Stern.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/gspca/gspca.h')
| -rw-r--r-- | drivers/media/video/gspca/gspca.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/media/video/gspca/gspca.h b/drivers/media/video/gspca/gspca.h index 7c2f44b2397..c17625cff9b 100644 --- a/drivers/media/video/gspca/gspca.h +++ b/drivers/media/video/gspca/gspca.h @@ -127,7 +127,8 @@ struct gspca_dev { const struct sd_desc *sd_desc; /* subdriver description */ unsigned ctrl_dis; /* disabled controls (bit map) */ - __u8 usb_buf[8]; /* buffer for USB exchanges */ +#define USB_BUF_SZ 64 + __u8 *usb_buf; /* buffer for USB exchanges */ struct urb *urb[MAX_NURBS]; __u8 *frbuf; /* buffer for nframes */ |