diff options
Diffstat (limited to 'drivers/usb/gadget/g_zero.h')
| -rw-r--r-- | drivers/usb/gadget/g_zero.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/gadget/g_zero.h b/drivers/usb/gadget/g_zero.h index 19ec50a42a74..15f180904f8a 100644 --- a/drivers/usb/gadget/g_zero.h +++ b/drivers/usb/gadget/g_zero.h @@ -8,6 +8,8 @@ #define GZERO_BULK_BUFLEN 4096 #define GZERO_QLEN 32 +#define GZERO_ISOC_INTERVAL 4 +#define GZERO_ISOC_MAXPACKET 1024 struct usb_zero_options { unsigned pattern; @@ -27,6 +29,15 @@ struct f_ss_opts { unsigned isoc_mult; unsigned isoc_maxburst; unsigned bulk_buflen; + + /* + * Read/write access to configfs attributes is handled by configfs. + * + * This is to protect the data from concurrent access by read/write + * and create symlink/remove symlink. + */ + struct mutex lock; + int refcnt; }; struct f_lb_opts { |