Changeset 23 for trunk/kernel/kern/chdev.h

Timestamp:

Jun 18, 2017, 10:06:41 PM (7 years ago)

Author:

alain

Message:

Introduce syscalls.

File:

• trunk/kernel/kern/chdev.h (modified) (3 diffs)

trunk/kernel/kern/chdev.h

@@ -41 +41 @@
  * This file defines the kernel representation of a generic (i.e. implementation
  * independant) Channel Device descriptor (in brief "chdev").
- * ALMOS-MKH supports multi-channels peripherals, and defines one separated descriptor
- * for each channel (and for each RX/TX direction for the NIC device).
+ * ALMOS-MKH supports multi-channels peripherals, and defines one separated chdev 
+ * descriptor for each channel (and for each RX/TX direction for the NIC device).
  * Each chdev contains a waiting queue, registering the "client threads" requests,
  * and an associated "server thread", handling these requests.
@@ -107 +107 @@
 /******************************************************************************************
  * This structure defines a chdev descriptor.
- * There is one chdev descriptor per channel.
+ * For multi-channels device, there is one chdev descriptor per channel.
  * This structure is NOT replicated, and can be located in any cluster.
  * One kernel thread, in charge of handling the commands registered in the waiting queue
@@ -120 +120 @@
     uint32_t             channel;     /*! channel index                                  */
     bool_t               is_rx;       /*! relevant for NIC peripheral channels only      */
-        xptr_t               base;        /*! extended pointer on channel segment            */
+        xptr_t               base;        /*! extended pointer on channel segment paddr      */
+    char                 name[16];    /*! name (required by DEVFS)                       */
 
     dev_cmd_t          * cmd;         /*! local pointer on driver command function       */