diff options
Diffstat (limited to 'include/linux/uio_driver.h')
| -rw-r--r-- | include/linux/uio_driver.h | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/include/linux/uio_driver.h b/include/linux/uio_driver.h index 32c0e83d6239..3c85c81b0027 100644 --- a/include/linux/uio_driver.h +++ b/include/linux/uio_driver.h @@ -23,11 +23,13 @@ struct uio_map; /** * struct uio_mem - description of a UIO memory region * @name: name of the memory region for identification - * @addr: address of the device's memory (phys_addr is used since - * addr can be logical, virtual, or physical & phys_addr_t - * should always be large enough to handle any of the - * address types) - * @size: size of IO + * @addr: address of the device's memory rounded to page + * size (phys_addr is used since addr can be + * logical, virtual, or physical & phys_addr_t + * should always be large enough to handle any of + * the address types) + * @offs: offset of device memory within the page + * @size: size of IO (multiple of page size) * @memtype: type of memory addr points to * @internal_addr: ioremap-ped version of addr, for driver internal use * @map: for use by the UIO core only. @@ -35,6 +37,7 @@ struct uio_map; struct uio_mem { const char *name; phys_addr_t addr; + unsigned long offs; resource_size_t size; int memtype; void __iomem *internal_addr; |