diff -Nur linux-2.5.5-old/sound/oss/cs4281/cs4281_wrapper.h linux-2.5.5/sound/oss/cs4281/cs4281_wrapper.h
--- linux-2.5.5-old/sound/oss/cs4281/cs4281_wrapper.h	Thu Jan  1 01:00:00 1970
+++ linux-2.5.5/sound/oss/cs4281/cs4281_wrapper.h	Mon Feb 25 20:38:04 2002
@@ -0,0 +1,54 @@
+/*******************************************************************************
+*
+*      "cs4281_wrapper.h" --  Cirrus Logic-Crystal CS4281 linux audio driver.
+*
+*      Copyright (C) 2000,2001  Cirrus Logic Corp.  
+*            -- tom woller (twoller@crystal.cirrus.com) or
+*               (audio@crystal.cirrus.com).
+*
+*      This program is free software; you can redistribute it and/or modify
+*      it under the terms of the GNU General Public License as published by
+*      the Free Software Foundation; either version 2 of the License, or
+*      (at your option) any later version.
+*
+*      This program is distributed in the hope that it will be useful,
+*      but WITHOUT ANY WARRANTY; without even the implied warranty of
+*      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*      GNU General Public License for more details.
+*
+*      You should have received a copy of the GNU General Public License
+*      along with this program; if not, write to the Free Software
+*      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*
+* 12/22/00 trw - new file. 
+* 04/18/01 trw - rework entire wrapper logic.
+*
+*******************************************************************************/
+#ifndef __CS4281_WRAPPER_H
+#define __CS4281_WRAPPER_H
+
+/* 2.4.x wrapper */
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,12)
+static int cs4281_null_suspend(struct pci_dev *pcidev, u32 unused) { return 0; }
+static int cs4281_null_resume(struct pci_dev *pcidev) { return 0; }
+#else
+#define no_llseek cs4281_llseek
+static loff_t cs4281_llseek(struct file *file, loff_t offset, int origin)
+{
+	return -ESPIPE;
+}
+void cs4281_null_suspend(struct pci_dev *pcidev) { return; }
+void cs4281_null_resume(struct pci_dev *pcidev) { return; }
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,3)
+/* Some versions of 2.4.2 resolve pci_set_dma_mask and some do not... 
+*  but 2.4.0 definitely does not 
+*/
+#define pci_set_dma_mask(dev,data) 0;
+#else
+#endif
+#define cs4x_mem_map_reserve(page) mem_map_reserve(page)
+#define cs4x_mem_map_unreserve(page) mem_map_unreserve(page)
+
+#endif /* #ifndef __CS4281_WRAPPER_H */
diff -Nur linux-2.5.5-old/sound/oss/cs4281/cs4281m.c linux-2.5.5/sound/oss/cs4281/cs4281m.c
--- linux-2.5.5-old/sound/oss/cs4281/cs4281m.c	Thu Mar  7 14:52:47 2002
+++ linux-2.5.5/sound/oss/cs4281/cs4281m.c	Thu Mar  7 16:06:55 2002
@@ -98,6 +98,7 @@
 int cs4281_suspend(struct cs4281_state *s);
 int cs4281_resume(struct cs4281_state *s);
 
+#include "cs4281_wrapper-24.c"
 #include "cs4281_wrapper.h"
 #include "cs4281pm-24.h"
 
diff -Nur linux-2.5.5-old/sound/oss/cs4281/cs4281pm-24.h linux-2.5.5/sound/oss/cs4281/cs4281pm-24.h
--- linux-2.5.5-old/sound/oss/cs4281/cs4281pm-24.h	Thu Jan  1 01:00:00 1970
+++ linux-2.5.5/sound/oss/cs4281/cs4281pm-24.h	Mon Feb 25 20:38:04 2002
@@ -0,0 +1,67 @@
+/*******************************************************************************
+*
+*      "cs4281pm-24.h" --  Cirrus Logic-Crystal CS4281 linux audio driver.
+*
+*      Copyright (C) 2000,2001  Cirrus Logic Corp.  
+*            -- tom woller (twoller@crystal.cirrus.com) or
+*               (audio@crystal.cirrus.com).
+*
+*      This program is free software; you can redistribute it and/or modify
+*      it under the terms of the GNU General Public License as published by
+*      the Free Software Foundation; either version 2 of the License, or
+*      (at your option) any later version.
+*
+*      This program is distributed in the hope that it will be useful,
+*      but WITHOUT ANY WARRANTY; without even the implied warranty of
+*      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+*      GNU General Public License for more details.
+*
+*      You should have received a copy of the GNU General Public License
+*      along with this program; if not, write to the Free Software
+*      Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*
+* 2001.04.05 trw - new file. 
+*
+*******************************************************************************/
+#ifndef NOT_CS4281_PM
+#include <linux/pm.h>
+#include <linux/config.h>
+#include "cs4281pm.h"
+
+//#define CS4281_PCI_PM_SUPPORT_ENABLE 1
+#if CS4281_PCI_PM_SUPPORT_ENABLE
+#define cs_pm_register(a, b, c) 0;
+#define cs_pm_unregister_all(a)
+/* 
+* for now (12/22/00) only enable the pm_register PM support.
+* allow these table entries to be null.
+*/
+#define CS4281_SUSPEND_TBL cs4281_suspend_tbl
+#define CS4281_RESUME_TBL cs4281_resume_tbl
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,4,12)
+static int cs4281_suspend_tbl(struct pci_dev *pcidev, u32 unused);
+static int cs4281_resume_tbl(struct pci_dev *pcidev);
+#else 
+void cs4281_suspend_tbl(struct pci_dev *pcidev);
+void cs4281_resume_tbl(struct pci_dev *pcidev);
+#endif //LINUX_VERSION
+#else //CS4281_PCI_PM_SUPPORT_ENABLE
+#ifdef CONFIG_PM
+int cs4281_pm_callback(struct pm_dev *dev, pm_request_t rqst, void *data);
+#define cs_pm_register(a, b, c) pm_register((a), (b), (c));
+#define cs_pm_unregister_all(a) pm_unregister_all((a));
+#define CS4281_SUSPEND_TBL cs4281_null_suspend
+#define CS4281_RESUME_TBL cs4281_null_resume
+#else
+#define cs_pm_register(a, b, c) 0;
+#define cs_pm_unregister_all(a)
+#define CS4281_SUSPEND_TBL cs4281_null_suspend
+#define CS4281_RESUME_TBL cs4281_null_resume
+#endif //CONFIG_PM
+#endif //CS4281_PCI_PM_SUPPORT_ENABLE
+#else
+#define cs_pm_register(a, b, c) 0;
+#define cs_pm_unregister_all(a)
+#define CS4281_SUSPEND_TBL cs4281_null_suspend
+#define CS4281_RESUME_TBL cs4281_null_resume
+#endif //NOT_CS4281_PM