diff --git a/libc/kernel/common/linux/telephony.h b/libc/kernel/common/linux/telephony.h
new file mode 100644
index 0000000..0c1d83d
--- /dev/null
+++ b/libc/kernel/common/linux/telephony.h
@@ -0,0 +1,172 @@
+/****************************************************************************
+ ****************************************************************************
+ ***
+ ***   This header was automatically generated from a Linux kernel header
+ ***   of the same name, to make information necessary for userspace to
+ ***   call into the kernel available to libc.  It contains only constants,
+ ***   structures, and macros generated from the original header, and thus,
+ ***   contains no copyrightable information.
+ ***
+ ****************************************************************************
+ ****************************************************************************/
+#ifndef TELEPHONY_H
+#define TELEPHONY_H
+
+#define TELEPHONY_VERSION 3013
+
+#define PHONE_VENDOR_IXJ 1
+#define PHONE_VENDOR_QUICKNET PHONE_VENDOR_IXJ
+#define PHONE_VENDOR_VOICETRONIX 2
+#define PHONE_VENDOR_ACULAB 3
+#define PHONE_VENDOR_DIGI 4
+#define PHONE_VENDOR_FRANKLIN 5
+
+#define QTI_PHONEJACK 100
+#define QTI_LINEJACK 300
+#define QTI_PHONEJACK_LITE 400
+#define QTI_PHONEJACK_PCI 500
+#define QTI_PHONECARD 600
+
+typedef enum {
+ vendor = 0,
+ device,
+ port,
+ codec,
+ dsp
+} phone_cap;
+
+struct phone_capability {
+ char desc[80];
+ phone_cap captype;
+ int cap;
+ int handle;
+};
+
+typedef enum {
+ pots = 0,
+ pstn,
+ handset,
+ speaker
+} phone_ports;
+
+#define PHONE_CAPABILITIES _IO ('q', 0x80)
+#define PHONE_CAPABILITIES_LIST _IOR ('q', 0x81, struct phone_capability *)
+#define PHONE_CAPABILITIES_CHECK _IOW ('q', 0x82, struct phone_capability *)
+
+typedef struct {
+ char month[3];
+ char day[3];
+ char hour[3];
+ char min[3];
+ int numlen;
+ char number[11];
+ int namelen;
+ char name[80];
+} PHONE_CID;
+
+#define PHONE_RING _IO ('q', 0x83)
+#define PHONE_HOOKSTATE _IO ('q', 0x84)
+#define PHONE_MAXRINGS _IOW ('q', 0x85, char)
+#define PHONE_RING_CADENCE _IOW ('q', 0x86, short)
+#define OLD_PHONE_RING_START _IO ('q', 0x87)
+#define PHONE_RING_START _IOW ('q', 0x87, PHONE_CID *)
+#define PHONE_RING_STOP _IO ('q', 0x88)
+
+#define USA_RING_CADENCE 0xC0C0
+
+#define PHONE_REC_CODEC _IOW ('q', 0x89, int)
+#define PHONE_REC_START _IO ('q', 0x8A)
+#define PHONE_REC_STOP _IO ('q', 0x8B)
+#define PHONE_REC_DEPTH _IOW ('q', 0x8C, int)
+#define PHONE_FRAME _IOW ('q', 0x8D, int)
+#define PHONE_REC_VOLUME _IOW ('q', 0x8E, int)
+#define PHONE_REC_VOLUME_LINEAR _IOW ('q', 0xDB, int)
+#define PHONE_REC_LEVEL _IO ('q', 0x8F)
+
+#define PHONE_PLAY_CODEC _IOW ('q', 0x90, int)
+#define PHONE_PLAY_START _IO ('q', 0x91)
+#define PHONE_PLAY_STOP _IO ('q', 0x92)
+#define PHONE_PLAY_DEPTH _IOW ('q', 0x93, int)
+#define PHONE_PLAY_VOLUME _IOW ('q', 0x94, int)
+#define PHONE_PLAY_VOLUME_LINEAR _IOW ('q', 0xDC, int)
+#define PHONE_PLAY_LEVEL _IO ('q', 0x95)
+#define PHONE_DTMF_READY _IOR ('q', 0x96, int)
+#define PHONE_GET_DTMF _IOR ('q', 0x97, int)
+#define PHONE_GET_DTMF_ASCII _IOR ('q', 0x98, int)
+#define PHONE_DTMF_OOB _IOW ('q', 0x99, int)
+#define PHONE_EXCEPTION _IOR ('q', 0x9A, int)
+#define PHONE_PLAY_TONE _IOW ('q', 0x9B, char)
+#define PHONE_SET_TONE_ON_TIME _IOW ('q', 0x9C, int)
+#define PHONE_SET_TONE_OFF_TIME _IOW ('q', 0x9D, int)
+#define PHONE_GET_TONE_ON_TIME _IO ('q', 0x9E)
+#define PHONE_GET_TONE_OFF_TIME _IO ('q', 0x9F)
+#define PHONE_GET_TONE_STATE _IO ('q', 0xA0)
+#define PHONE_BUSY _IO ('q', 0xA1)
+#define PHONE_RINGBACK _IO ('q', 0xA2)
+#define PHONE_DIALTONE _IO ('q', 0xA3)
+#define PHONE_CPT_STOP _IO ('q', 0xA4)
+
+#define PHONE_PSTN_SET_STATE _IOW ('q', 0xA4, int)
+#define PHONE_PSTN_GET_STATE _IO ('q', 0xA5)
+
+#define PSTN_ON_HOOK 0
+#define PSTN_RINGING 1
+#define PSTN_OFF_HOOK 2
+#define PSTN_PULSE_DIAL 3
+
+#define PHONE_WINK_DURATION _IOW ('q', 0xA6, int)
+#define PHONE_WINK _IOW ('q', 0xAA, int)
+
+typedef enum {
+ G723_63 = 1,
+ G723_53 = 2,
+ TS85 = 3,
+ TS48 = 4,
+ TS41 = 5,
+ G728 = 6,
+ G729 = 7,
+ ULAW = 8,
+ ALAW = 9,
+ LINEAR16 = 10,
+ LINEAR8 = 11,
+ WSS = 12,
+ G729B = 13
+} phone_codec;
+
+struct phone_codec_data
+{
+ phone_codec type;
+ unsigned short buf_min, buf_opt, buf_max;
+};
+
+#define PHONE_QUERY_CODEC _IOWR ('q', 0xA7, struct phone_codec_data *)
+#define PHONE_PSTN_LINETEST _IO ('q', 0xA8)
+
+#define PHONE_VAD _IOW ('q', 0xA9, int)
+
+struct phone_except
+{
+ unsigned int dtmf_ready:1;
+ unsigned int hookstate:1;
+ unsigned int pstn_ring:1;
+ unsigned int caller_id:1;
+ unsigned int pstn_wink:1;
+ unsigned int f0:1;
+ unsigned int f1:1;
+ unsigned int f2:1;
+ unsigned int f3:1;
+ unsigned int flash:1;
+ unsigned int fc0:1;
+ unsigned int fc1:1;
+ unsigned int fc2:1;
+ unsigned int fc3:1;
+ unsigned int reserved:18;
+};
+
+union telephony_exception {
+ struct phone_except bits;
+ unsigned int bytes;
+};
+
+#endif
+