patch-2.4.21 linux-2.4.21/drivers/usb/auerchar.h
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- Lines: 80
- Date:
2003-06-13 07:51:36.000000000 -0700
- Orig file:
linux-2.4.20/drivers/usb/auerchar.h
- Orig date:
1969-12-31 16:00:00.000000000 -0800
diff -urN linux-2.4.20/drivers/usb/auerchar.h linux-2.4.21/drivers/usb/auerchar.h
@@ -0,0 +1,79 @@
+/*****************************************************************************/
+/*
+ * auerchar.h -- Auerswald PBX/System Telephone character interface.
+ *
+ * Copyright (C) 2002 Wolfgang Mües (wolfgang@iksw-muees.de)
+ *
+ * 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.
+ */
+ /*****************************************************************************/
+
+#ifndef AUERCHAR_H
+#define AUERCHAR_H
+
+#include "auerchain.h"
+#include "auerbuf.h"
+#include "auerserv.h"
+
+/* External data structures / Interface */
+struct audevinfo {
+ char *buf; /* return buffer for string contents */
+ unsigned int bsize; /* size of return buffer */
+};
+
+/* IO controls */
+#define IOCTL_AU_SLEN _IOR( 'U', 0xF0, int) /* return the max. string descriptor length */
+#define IOCTL_AU_DEVINFO _IOWR('U', 0xF1, struct audevinfo) /* get name of a specific device */
+#define IOCTL_AU_SERVREQ _IOW( 'U', 0xF2, int) /* request a service channel */
+#define IOCTL_AU_BUFLEN _IOR( 'U', 0xF3, int) /* return the max. buffer length for the device */
+#define IOCTL_AU_RXAVAIL _IOR( 'U', 0xF4, int) /* return != 0 if Receive Data available */
+#define IOCTL_AU_CONNECT _IOR( 'U', 0xF5, int) /* return != 0 if connected to a service channel */
+#define IOCTL_AU_TXREADY _IOR( 'U', 0xF6, int) /* return != 0 if Transmitt channel ready to send */
+/* 'U' 0xF7..0xFF reserved */
+
+/* character device context */
+struct auerswald;
+struct auerchar {
+ struct semaphore mutex; /* protection in user context */
+ struct auerswald *auerdev; /* context pointer of assigned device */
+ struct auerbufctl bufctl; /* controls the buffer chain */
+ struct auerscon scontext; /* service context */
+ wait_queue_head_t readwait; /* for synchronous reading */
+ struct semaphore readmutex; /* protection against multiple reads */
+ struct auerbuf *readbuf; /* buffer held for partial reading */
+ unsigned int readoffset; /* current offset in readbuf */
+ unsigned int removed; /* is != 0 if device is removed */
+};
+
+/* Function prototypes */
+void auerchar_delete(struct auerchar *ccp);
+
+int auerchar_open(struct inode *inode, struct file *file);
+
+int auerchar_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg);
+
+loff_t auerchar_llseek(struct file *file, loff_t offset, int origin);
+
+ssize_t auerchar_read(struct file *file, char *buf, size_t count,
+ loff_t * ppos);
+
+ssize_t auerchar_write(struct file *file, const char *buf, size_t len,
+ loff_t * ppos);
+
+int auerchar_release(struct inode *inode, struct file *file);
+
+
+#endif /* AUERCHAR_H */
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