--- linux/sound/pcmcia/vx/vxpocket.h	2003-07-01 13:12:45.000000000 +0200
+++ linux/sound/pcmcia/vx/vxpocket.h	2003-07-01 13:14:20.000000000 +0200
@@ -28,6 +28,8 @@
 #include <pcmcia/cistpl.h>
 #include <pcmcia/ds.h>
 
+#include "../compat_cs.h"
+
 struct snd_vxp_entry {
 	dev_info_t *dev_info;
 
--- linux/sound/pcmcia/compat_cs.h	2003-07-01 13:13:17.000000000 +0200
+++ linux/sound/pcmcia/compat_cs.h	2003-07-01 13:15:28.000000000 +0200
@@ -0,0 +1,52 @@
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 5, 0) && (defined(CONFIG_PCMCIA) || defined(CONFIG_PCMCIA_MODULE))
+
+#include <pcmcia/cs_types.h>
+#include <pcmcia/cs.h>
+#include <pcmcia/cistpl.h>
+#include <pcmcia/ds.h>
+#include <pcmcia/version.h>
+
+struct cs_device_driver {
+	const char *name;
+};
+
+struct pcmcia_driver {
+	int                     use_count;
+	dev_link_t              *(*attach)(void);
+	void                    (*detach)(dev_link_t *);
+	struct module           *owner;
+	struct cs_device_driver	drv;
+};
+
+/* driver registration */
+static inline int snd_compat_pcmcia_register_driver(struct pcmcia_driver *driver)
+{
+	servinfo_t serv;
+
+	CardServices(GetCardServicesInfo, &serv);
+	if (serv.Revision != CS_RELEASE_CODE) {
+		printk(KERN_WARNING "%s: Card Services release does not match (%x != %x)!\n", driver->drv.name, serv.Revision, CS_RELEASE_CODE);
+		return -EIO;
+	}
+	register_pccard_driver((dev_info_t *)driver->drv.name, driver->attach, driver->detach);
+	return 0;
+}
+
+static inline void snd_compat_pcmcia_unregister_driver(struct pcmcia_driver *driver)
+{
+	unregister_pccard_driver((dev_info_t *)driver->drv.name);
+}
+
+#define pcmcia_register_driver(driver) snd_compat_pcmcia_register_driver(driver)
+#define pcmcia_unregister_driver(driver) snd_compat_pcmcia_unregister_driver(driver)
+
+/*
+ * print the error message related with cs
+ */
+static inline void cs_error(client_handle_t handle, int func, int ret)
+{
+	error_info_t err = { func, ret };
+	CardServices(ReportError, handle, &err);
+}
+
+#endif /* 2.5.0+ */