Changeset df6b760 in mainline for uspace/lib/c/include/device/char.h

Timestamp:

2010-11-26T13:31:37Z (14 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

ffdd2b9

Parents:

d47279b

Message:

improve read_dev() and write_dev() interface

File:

• uspace/lib/c/include/device/char.h (modified) (3 diffs)

uspace/lib/c/include/device/char.h

@@ -26 +26 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
- 
+
  /** @addtogroup libc
  * @{
@@ -32 +32 @@
 /** @file
  */
- 
+
 #ifndef LIBC_DEVICE_HW_RES_H_
 #define LIBC_DEVICE_HW_RES_H_
@@ -38 +38 @@
 typedef enum {
         CHAR_READ_DEV = 0,
-        CHAR_WRITE_DEV  
+        CHAR_WRITE_DEV
 } hw_res_funcs_t;
 
-int read_dev(int dev_phone, void *buf, size_t len);
-int write_dev(int dev_phone, void *buf, size_t len);
+ssize_t read_dev(int dev_phone, void *buf, size_t len);
+ssize_t write_dev(int dev_phone, void *buf, size_t len);
 
 #endif