4 files changed, 33 insertions, 4 deletions
diff --git a/Kernel/Builtins/GPRS/.keepme b/Kernel/Builtins/GPRS/.keepme
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/Kernel/Builtins/GPRS/.keepme
diff --git a/Kernel/Builtins/GSM/.keepme b/Kernel/Builtins/GSM/.keepme
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/Kernel/Builtins/GSM/.keepme
diff --git a/Kernel/Builtins/GSM/IO.hxx b/Kernel/Builtins/GSM/IO.hxx
new file mode 100644
index 00000000..39de1a0f
--- /dev/null
+++ b/Kernel/Builtins/GSM/IO.hxx
@@ -0,0 +1,29 @@
+/* -------------------------------------------
+
+Copyright Zeta Electronics Corporation.
+
+File: GSM\IO.hxx.
+Purpose: GSM I/O.
+
+------------------------------------------- */
+
+#ifndef _INC_NETWORK_GSM_IO_HXX_
+#define _INC_NETWORK_GSM_IO_HXX_
+
+#include <NewKit/Defines.hpp>
+#include <NewKit/String.hpp>
+
+/// @brief GSM I/O routines.
+
+/// @brief Turn on SIM slot.
+NewOS::Boolean gsm_turn_on_slot(NewOS::Int32 slot);
+
+/// @brief Turn off SIM slot.
+NewOS::Boolean gsm_turn_off_slot(NewOS::Int32 slot);
+
+/// @brief Send AT command.
+NewOS::Boolean gsm_send_at_command(NewOS::Char* buf,
+								   NewOS::Size bufSz);
+
+
+#endif // ifndef _INC_NETWORK_GSM_IO_HXX_
diff --git a/Kernel/Builtins/ReadMe.txt b/Kernel/Builtins/ReadMe.txt
index b0a5a327..df63e0be 100644
--- a/Kernel/Builtins/ReadMe.txt
+++ b/Kernel/Builtins/ReadMe.txt
@@ -6,14 +6,14 @@ NewOS Builtins
 What are these?
 ===============
 
-These are NewOS builtins device drivers.
+These are like modules for the kernel.
 
 ===================
 Maintainers/Authors
 ===================
 
-ACPIFactoryInterface: Amlal EL Mahrouss.
+ACPI: Amlal EL Mahrouss.
 AHCI: Amlal EL Mahrouss.
 GX: Amlal EL Mahrouss.
-PS2: Amlal EL Mahrouss
-ATA: Amlal EL Mahrouss
-\ No newline at end of file
+PS2: Amlal EL Mahrouss.
+ATA: Amlal EL Mahrouss.
+\ No newline at end of file