/
lsusb.c
1692 lines (1531 loc) · 52.7 KB
/
lsusb.c
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/*****************************************************************************/
/*
* lsusb.c -- lspci like utility for the USB bus
*
* Copyright (C) 1999, 2000, 2001, 2003
* Thomas Sailer (t.sailer@alumni.ethz.ch)
*
* 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.
*
*
*/
/*****************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
#include <stdio.h>
#include <stdarg.h>
#include <usb.h>
#include "names.h"
#include "devtree.h"
#include "usbmisc.h"
#define _GNU_SOURCE
#include <getopt.h>
#define USB_DT_CS_INTERFACE 0x24
#define USB_DT_CS_ENDPOINT 0x25
#define VERBLEVEL_DEFAULT 0 /* 0 gives lspci behaviour; 1, lsusb-0.9 */
#define CTRL_RETRIES 2
#define CTRL_TIMEOUT (5*1000) /* milliseconds */
static const char *procbususb = "/proc/bus/usb";
static unsigned int verblevel = VERBLEVEL_DEFAULT;
static int do_report_desc = 1;
static void dump_interface(struct usb_dev_handle *dev, struct usb_interface *interface);
static void dump_endpoint(struct usb_dev_handle *dev, struct usb_interface_descriptor *interface, struct usb_endpoint_descriptor *endpoint);
static void dump_audiocontrol_interface(struct usb_dev_handle *dev, unsigned char *buf);
static void dump_audiostreaming_interface(struct usb_dev_handle *dev, unsigned char *buf);
static void dump_midistreaming_interface(struct usb_dev_handle *dev, unsigned char *buf);
static char *dump_comm_descriptor(struct usb_dev_handle *dev, unsigned char *buf, char *indent);
static void dump_hid_device(struct usb_dev_handle *dev, struct usb_interface_descriptor *interface, unsigned char *buf);
static void dump_audiostreaming_endpoint(struct usb_dev_handle *dev, unsigned char *buf);
static void dump_midistreaming_endpoint(struct usb_dev_handle *dev, unsigned char *buf);
static void dump_hub(char *prefix, unsigned char *p, int has_tt);
static void dump_ccid_device(unsigned char *buf);
/* ---------------------------------------------------------------------- */
static unsigned int convert_le_u32 (const unsigned char *buf)
{
return buf[0] | (buf[1] << 8) | (buf[2] << 16) | (buf[3] << 24);
}
/* ---------------------------------------------------------------------- */
int lprintf(unsigned int vl, const char *format, ...)
{
va_list ap;
int r;
if (vl > verblevel)
return 0;
va_start(ap, format);
r = vfprintf(stderr, format, ap);
va_end(ap);
if (!vl)
exit(1);
return r;
}
/* ---------------------------------------------------------------------- */
static int get_string(struct usb_dev_handle *dev, char* buf, size_t size, u_int8_t id)
{
int ret;
if (id) {
ret = usb_get_string_simple(dev, id, buf, size);
if (ret <= 0) {
buf[0] = 0;
return 0;
}
else
return ret;
}
else {
buf[0] = 0;
return 0;
}
}
static int get_vendor_string(char *buf, size_t size, u_int16_t vid)
{
const char *cp;
if (size < 1)
return 0;
*buf = 0;
if (!(cp = names_vendor(vid)))
return 0;
return snprintf(buf, size, "%s", cp);
}
static int get_product_string(char *buf, size_t size, u_int16_t vid, u_int16_t pid)
{
const char *cp;
if (size < 1)
return 0;
*buf = 0;
if (!(cp = names_product(vid, pid)))
return 0;
return snprintf(buf, size, "%s", cp);
}
static int get_class_string(char *buf, size_t size, u_int8_t cls)
{
const char *cp;
if (size < 1)
return 0;
*buf = 0;
if (!(cp = names_class(cls)))
return 0;
return snprintf(buf, size, "%s", cp);
}
static int get_subclass_string(char *buf, size_t size, u_int8_t cls, u_int8_t subcls)
{
const char *cp;
if (size < 1)
return 0;
*buf = 0;
if (!(cp = names_subclass(cls, subcls)))
return 0;
return snprintf(buf, size, "%s", cp);
}
static int get_protocol_string(char *buf, size_t size, u_int8_t cls, u_int8_t subcls, u_int8_t proto)
{
const char *cp;
if (size < 1)
return 0;
*buf = 0;
if (!(cp = names_protocol(cls, subcls, proto)))
return 0;
return snprintf(buf, size, "%s", cp);
}
static int get_audioterminal_string(char *buf, size_t size, u_int16_t termt)
{
const char *cp;
if (size < 1)
return 0;
*buf = 0;
if (!(cp = names_audioterminal(termt)))
return 0;
return snprintf(buf, size, "%s", cp);
}
/* ---------------------------------------------------------------------- */
static void dump_junk2(unsigned char *buf, unsigned int len)
{
unsigned int i;
for (i = 0; i < len; i++)
printf(" %02x", buf[i]);
printf("\n");
}
static void dump_junk(unsigned char *buf, const char *indent, unsigned int len)
{
unsigned int i;
if (buf[0] <= len)
return;
printf("%sjunk at descriptor end:", indent);
for (i = len; i < buf[0]; i++)
printf(" %02x", buf[i]);
printf("\n");
}
/*
* General config descriptor dump
*/
static void dump_device(struct usb_dev_handle *dev, struct usb_device_descriptor *descriptor, unsigned int flags)
{
char vendor[128], product[128];
char cls[128], subcls[128], proto[128];
char mfg[128], prod[128], serial[128];
get_vendor_string(vendor, sizeof(vendor), descriptor->idVendor);
get_product_string(product, sizeof(product), descriptor->idVendor, descriptor->idProduct);
get_class_string(cls, sizeof(cls), descriptor->bDeviceClass);
get_subclass_string(subcls, sizeof(subcls), descriptor->bDeviceClass, descriptor->bDeviceSubClass);
get_protocol_string(proto, sizeof(proto), descriptor->bDeviceClass, descriptor->bDeviceSubClass, descriptor->bDeviceProtocol);
get_string(dev, mfg, sizeof(mfg), descriptor->iManufacturer);
get_string(dev, prod, sizeof(prod), descriptor->iProduct);
get_string(dev, serial, sizeof(serial), descriptor->iSerialNumber);
printf("Device Descriptor:\n"
" bLength %5u\n"
" bDescriptorType %5u\n"
" bcdUSB %2x.%02x\n"
" bDeviceClass %5u %s\n"
" bDeviceSubClass %5u %s\n"
" bDeviceProtocol %5u %s\n"
" bMaxPacketSize0 %5u\n"
" idVendor 0x%04x %s\n"
" idProduct 0x%04x %s\n"
" bcdDevice %2x.%02x\n"
" iManufacturer %5u %s\n"
" iProduct %5u %s\n"
" iSerial %5u %s\n"
" bNumConfigurations %5u\n",
descriptor->bLength, descriptor->bDescriptorType, descriptor->bcdUSB >> 8, descriptor->bcdUSB & 0xff,
descriptor->bDeviceClass, cls, descriptor->bDeviceSubClass, subcls, descriptor->bDeviceProtocol, proto,
descriptor->bMaxPacketSize0, descriptor->idVendor, vendor, descriptor->idProduct, product,
descriptor->bcdDevice >> 8, descriptor->bcdDevice & 0xff, descriptor->iManufacturer, mfg,
descriptor->iProduct, prod, descriptor->iSerialNumber, serial, descriptor->bNumConfigurations);
}
static void dump_config(struct usb_dev_handle *dev, struct usb_config_descriptor *config)
{
char cfg[128];
int i;
get_string(dev, cfg, sizeof(cfg), config->iConfiguration);
printf(" Configuration Descriptor:\n"
" bLength %5u\n"
" bDescriptorType %5u\n"
" wTotalLength %5u\n"
" bNumInterfaces %5u\n"
" bConfigurationValue %5u\n"
" iConfiguration %5u %s\n"
" bmAttributes 0x%02x\n",
config->bLength, config->bDescriptorType, config->wTotalLength,
config->bNumInterfaces, config->bConfigurationValue, config->iConfiguration,
cfg, config->bmAttributes);
if (config->bmAttributes & 0x40)
printf(" Self Powered\n");
if (config->bmAttributes & 0x20)
printf(" Remote Wakeup\n");
printf(" MaxPower %5umA\n", config->MaxPower * 2);
for (i = 0 ; i < config->bNumInterfaces ; i++)
dump_interface(dev, &config->interface[i]);
}
static void dump_altsetting(struct usb_dev_handle *dev, struct usb_interface_descriptor *interface)
{
char cls[128], subcls[128], proto[128];
char ifstr[128];
char *buf;
int size, i;
get_class_string(cls, sizeof(cls), interface->bInterfaceClass);
get_subclass_string(subcls, sizeof(subcls), interface->bInterfaceClass, interface->bInterfaceSubClass);
get_protocol_string(proto, sizeof(proto), interface->bInterfaceClass, interface->bInterfaceSubClass, interface->bInterfaceProtocol);
get_string(dev, ifstr, sizeof(ifstr), interface->iInterface);
printf(" Interface Descriptor:\n"
" bLength %5u\n"
" bDescriptorType %5u\n"
" bInterfaceNumber %5u\n"
" bAlternateSetting %5u\n"
" bNumEndpoints %5u\n"
" bInterfaceClass %5u %s\n"
" bInterfaceSubClass %5u %s\n"
" bInterfaceProtocol %5u %s\n"
" iInterface %5u %s\n",
interface->bLength, interface->bDescriptorType, interface->bInterfaceNumber,
interface->bAlternateSetting, interface->bNumEndpoints, interface->bInterfaceClass, cls,
interface->bInterfaceSubClass, subcls, interface->bInterfaceProtocol, proto,
interface->iInterface, ifstr);
for (i = 0 ; i < interface->bNumEndpoints ; i++)
dump_endpoint(dev, interface, &interface->endpoint[i]);
if (interface->extralen)
{
size = interface->extralen;
buf = interface->extra;
while (size >= 2 * sizeof(u_int8_t))
{
if (buf[0] < 2) {
fprintf(stderr, "invalid descriptor length of %d\n", buf[0]);
return;
}
else if (buf[1] == USB_DT_CS_INTERFACE)
{
switch(interface->bInterfaceClass) {
case USB_CLASS_AUDIO:
switch(interface->bInterfaceSubClass) {
case 1:
dump_audiocontrol_interface(dev, buf);
break;
case 2:
dump_audiostreaming_interface(dev, buf);
break;
case 3:
dump_midistreaming_interface(dev, buf);
break;
}
break;
case USB_CLASS_COMM:
dump_comm_descriptor(dev, buf, " ");
break;
}
}
else if (buf[1] == USB_DT_HID)
{
if (interface->bInterfaceClass == USB_CLASS_HID)
dump_hid_device(dev, interface, buf);
if (interface->bInterfaceClass == 0x0b)
dump_ccid_device(buf);
}
size -= buf[0];
buf += buf[0];
}
}
}
static void dump_interface(struct usb_dev_handle *dev, struct usb_interface *interface)
{
int i;
for (i = 0; i < interface->num_altsetting; i++)
dump_altsetting(dev, &interface->altsetting[i]);
}
static void dump_endpoint(struct usb_dev_handle *dev, struct usb_interface_descriptor *interface, struct usb_endpoint_descriptor *endpoint)
{
static const char *typeattr[] = { "Control", "Isochronous", "Bulk", "Interrupt" };
static const char *syncattr[] = { "None", "Asynchronous", "Adaptive", "Synchronous" };
static const char *usage[] = { "Data", "Feedback", "Implicit feedback Data", "(reserved)" };
static const char *hb[] = { "once", "twice", "three times", "(?\?)" };
char *buf;
int size;
printf(" Endpoint Descriptor:\n"
" bLength %5u\n"
" bDescriptorType %5u\n"
" bEndpointAddress 0x%02x EP %u %s\n"
" bmAttributes %5u\n"
" Transfer Type %s\n"
" Synch Type %s\n"
" Usage Type %s\n"
" wMaxPacketSize 0x%04x bytes %d %s\n"
" bInterval %5u\n",
endpoint->bLength, endpoint->bDescriptorType, endpoint->bEndpointAddress, endpoint->bEndpointAddress & 0x0f,
(endpoint->bEndpointAddress & 0x80) ? "IN" : "OUT", endpoint->bmAttributes,
typeattr[endpoint->bmAttributes & 3], syncattr[(endpoint->bmAttributes >> 2) & 3],
usage[(endpoint->bmAttributes >> 4) & 3], endpoint->wMaxPacketSize,
endpoint->wMaxPacketSize & 0x3ff, hb[(endpoint->wMaxPacketSize >> 1) & 3],
endpoint->bInterval);
/* only for audio endpoints */
if (endpoint->bLength == 9)
printf(" bRefresh %5u\n"
" bSynchAddress %5u\n",
endpoint->bRefresh, endpoint->bSynchAddress);
if (endpoint->extralen)
{
size = endpoint->extralen;
buf = endpoint->extra;
while (size >= 2 * sizeof(u_int8_t))
{
if (buf[0] < 2) {
fprintf(stderr, "invalid descriptor length of %d\n", buf[0]);
return;
} else if (buf[1] == USB_DT_CS_ENDPOINT) {
if (interface->bInterfaceClass == 1 && interface->bInterfaceSubClass == 2)
dump_audiostreaming_endpoint(dev, buf);
else if (interface->bInterfaceClass == 1 && interface->bInterfaceSubClass == 3)
dump_midistreaming_endpoint(dev, buf);
} else if (buf[1] == USB_DT_HUB) {
dump_hub(" ", buf, 0);
}
size -= buf[0];
buf += buf[0];
}
}
}
/* ---------------------------------------------------------------------- */
/*
* Audio Class descriptor dump
*/
static void dump_audiocontrol_interface(struct usb_dev_handle *dev, unsigned char *buf)
{
static const char *chconfig[] = {
"Left Front (L)", "Right Front (R)", "Center Front (C)", "Low Freqency Enhancement (LFE)",
"Left Surround (LS)", "Right Surround (RS)", "Left of Center (LC)", "Right of Center (RC)",
"Surround (S)", "Side Left (SL)", "Side Right (SR)", "Top (T)"
};
static const char *chftrcontrols[] = {
"Mute", "Volume", "Bass", "Mid", "Treble", "Graphic Equalizer", "Automatic Gain", "Delay", "Bass Boost", "Loudness"
};
unsigned int i, chcfg, j, k, N, termt;
char chnames[128], term[128], termts[128];
if (buf[1] != USB_DT_CS_INTERFACE)
printf(" Warning: Invalid descriptor\n");
else if (buf[0] < 3)
printf(" Warning: Descriptor too short\n");
printf(" AudioControl Interface Descriptor:\n"
" bLength %5u\n"
" bDescriptorType %5u\n"
" bDescriptorSubtype %5u ",
buf[0], buf[1], buf[2]);
switch (buf[2]) {
case 0x01: /* HEADER */
printf("(HEADER)\n");
if (buf[0] < 8+buf[7])
printf(" Warning: Descriptor too short\n");
printf(" bcdADC %2x.%02x\n"
" wTotalLength %5u\n"
" bInCollection %5u\n",
buf[4], buf[3], buf[5] | (buf[6] << 8), buf[7]);
for(i = 0; i < buf[7]; i++)
printf(" baInterfaceNr(%2u) %5u\n", i, buf[8+i]);
dump_junk(buf, " ", 8+buf[7]);
break;
case 0x02: /* INPUT_TERMINAL */
printf("(INPUT_TERMINAL)\n");
get_string(dev, chnames, sizeof(chnames), buf[10]);
get_string(dev, term, sizeof(term), buf[11]);
termt = buf[4] | (buf[5] << 8);
get_audioterminal_string(termts, sizeof(termts), termt);
if (buf[0] < 12)
printf(" Warning: Descriptor too short\n");
chcfg = buf[8] | (buf[9] << 8);
printf(" bTerminalID %5u\n"
" wTerminalType 0x%04x %s\n"
" bAssocTerminal %5u\n"
" bNrChannels %5u\n"
" wChannelConfig 0x%04x\n",
buf[3], termt, termts, buf[6], buf[7], chcfg);
for (i = 0; i < 12; i++)
if ((chcfg >> i) & 1)
printf(" %s\n", chconfig[i]);
printf(" iChannelNames %5u %s\n"
" iTerminal %5u %s\n",
buf[10], chnames, buf[11], term);
dump_junk(buf, " ", 12);
break;
case 0x03: /* OUTPUT_TERMINAL */
printf("(OUTPUT_TERMINAL)\n");
get_string(dev, term, sizeof(term), buf[8]);
termt = buf[4] | (buf[5] << 8);
get_audioterminal_string(termts, sizeof(termts), termt);
if (buf[0] < 9)
printf(" Warning: Descriptor too short\n");
printf(" bTerminalID %5u\n"
" wTerminalType 0x%04x %s\n"
" bAssocTerminal %5u\n"
" bSourceID %5u\n"
" iTerminal %5u %s\n",
buf[3], termt, termts, buf[6], buf[7], buf[8], term);
dump_junk(buf, " ", 9);
break;
case 0x04: /* MIXER_UNIT */
printf("(MIXER_UNIT)\n");
j = buf[4];
k = buf[j+5];
if (j == 0 || k == 0) {
printf(" Warning: mixer with %5u input and %5u output channels.\n", j, k);
N = 0;
} else {
N = 1+(j*k-1)/8;
}
get_string(dev, chnames, sizeof(chnames), buf[8+j]);
get_string(dev, term, sizeof(term), buf[9+j+N]);
if (buf[0] < 10+j+N)
printf(" Warning: Descriptor too short\n");
chcfg = buf[6+j] | (buf[7+j] << 8);
printf(" bUnitID %5u\n"
" bNrInPins %5u\n",
buf[3], buf[4]);
for (i = 0; i < j; i++)
printf(" baSourceID(%2u) %5u\n", i, buf[5+i]);
printf(" bNrChannels %5u\n"
" wChannelConfig 0x%04x\n",
buf[5+j], chcfg);
for (i = 0; i < 12; i++)
if ((chcfg >> i) & 1)
printf(" %s\n", chconfig[i]);
printf(" iChannelNames %5u %s\n",
buf[8+j], chnames);
for (i = 0; i < N; i++)
printf(" bmControls 0x%02x\n", buf[9+j+i]);
printf(" iMixer %5u %s\n", buf[9+j+N], term);
dump_junk(buf, " ", 10+j+N);
break;
case 0x05: /* SELECTOR_UNIT */
printf("(SELECTOR_UNIT)\n");
if (buf[0] < 6+buf[4])
printf(" Warning: Descriptor too short\n");
get_string(dev, term, sizeof(term), buf[5+buf[4]]);
printf(" bUnitID %5u\n"
" bNrInPins %5u\n",
buf[3], buf[4]);
for (i = 0; i < buf[4]; i++)
printf(" baSource(%2u) %5u\n", i, buf[5+i]);
printf(" iSelector %5u %s\n",
buf[5+buf[4]], term);
dump_junk(buf, " ", 6+buf[4]);
break;
case 0x06: /* FEATURE_UNIT */
printf("(FEATURE_UNIT)\n");
j = buf[5];
if (!j)
j = 1;
k = (buf[0] - 7) / j;
if (buf[0] < 7+buf[5]*k)
printf(" Warning: Descriptor too short\n");
get_string(dev, term, sizeof(term), buf[6+buf[5]*k]);
printf(" bUnitID %5u\n"
" bSourceID %5u\n"
" bControlSize %5u\n",
buf[3], buf[4], buf[5]);
for (i = 0; i < k; i++) {
chcfg = buf[6+buf[5]*i];
if (buf[5] > 1)
chcfg |= (buf[7+buf[5]*i] << 8);
for (j = 0; j < buf[5]; j++)
printf(" bmaControls(%2u) 0x%02x\n", i, buf[6+buf[5]*i+j]);
for (j = 0; j < 10; j++)
if ((chcfg >> j) & 1)
printf(" %s\n", chftrcontrols[j]);
}
printf(" iFeature %5u %s\n", buf[6+buf[5]*k], term);
dump_junk(buf, " ", 7+buf[5]*k);
break;
case 0x07: /* PROCESSING_UNIT */
printf("(PROCESSING_UNIT)\n");
j = buf[6];
k = buf[11+j];
get_string(dev, chnames, sizeof(chnames), buf[10+j]);
get_string(dev, term, sizeof(term), buf[12+j+k]);
chcfg = buf[8+j] | (buf[9+j] << 8);
if (buf[0] < 13+j+k)
printf(" Warning: Descriptor too short\n");
printf(" bUnitID %5u\n"
" wProcessType %5u\n"
" bNrPins %5u\n",
buf[3], buf[4] | (buf[5] << 8), buf[6]);
for (i = 0; i < j; i++)
printf(" baSourceID(%2u) %5u\n", i, buf[7+i]);
printf(" bNrChannels %5u\n"
" wChannelConfig 0x%04x\n", buf[7+j], chcfg);
for (i = 0; i < 12; i++)
if ((chcfg >> i) & 1)
printf(" %s\n", chconfig[i]);
printf(" iChannelNames %5u %s\n"
" bControlSize %5u\n", buf[10+j], chnames, buf[11+j]);
for (i = 0; i < k; i++)
printf(" bmControls(%2u) 0x%02x\n", i, buf[12+j+i]);
if (buf[12+j] & 1)
printf(" Enable Processing\n");
printf(" iProcessing %5u %s\n"
" Process-Specific ", buf[12+j+k], term);
dump_junk2(buf+(13+j+k), buf[0]-(13+j+k));
break;
case 0x08: /* EXTENSION_UNIT */
printf("(EXTENSION_UNIT)\n");
j = buf[6];
k = buf[11+j];
get_string(dev, chnames, sizeof(chnames), buf[10+j]);
get_string(dev, term, sizeof(term), buf[12+j+k]);
chcfg = buf[8+j] | (buf[9+j] << 8);
if (buf[0] < 13+j+k)
printf(" Warning: Descriptor too short\n");
printf(" bUnitID %5u\n"
" wExtensionCode %5u\n"
" bNrPins %5u\n",
buf[3], buf[4] | (buf[5] << 8), buf[6]);
for (i = 0; i < j; i++)
printf(" baSourceID(%2u) %5u\n", i, buf[7+i]);
printf(" bNrChannels %5u\n"
" wChannelConfig %5u\n", buf[7+j], chcfg);
for (i = 0; i < 12; i++)
if ((chcfg >> i) & 1)
printf(" %s\n", chconfig[i]);
printf(" iChannelNames %5u %s\n"
" bControlSize %5u\n", buf[10+j], chnames, buf[11+j]);
for (i = 0; i < k; i++)
printf(" bmControls(%2u) 0x%02x\n", i, buf[12+j+i]);
if (buf[12+j] & 1)
printf(" Enable Processing\n");
printf(" iExtension %5u %s\n",
buf[12+j+k], term);
dump_junk(buf, " ", 13+j+k);
break;
default:
printf("(unknown)\n"
" Invalid desc subtype:");
dump_junk2(buf+3, buf[0]-3);
break;
}
}
static void dump_audiostreaming_interface(struct usb_dev_handle *dev, unsigned char *buf)
{
static const char *fmtItag[] = { "TYPE_I_UNDEFINED", "PCM", "PCM8", "IEEE_FLOAT", "ALAW", "MULAW" };
static const char *fmtIItag[] = { "TYPE_II_UNDEFINED", "MPEG", "AC-3" };
static const char *fmtIIItag[] = { "TYPE_III_UNDEFINED", "IEC1937_AC-3", "IEC1937_MPEG-1_Layer1",
"IEC1937_MPEG-Layer2/3/NOEXT", "IEC1937_MPEG-2_EXT",
"IEC1937_MPEG-2_Layer1_LS", "IEC1937_MPEG-2_Layer2/3_LS" };
unsigned int i, j, fmttag;
const char *fmtptr = "undefined";
if (buf[1] != USB_DT_CS_INTERFACE)
printf(" Warning: Invalid descriptor\n");
else if (buf[0] < 3)
printf(" Warning: Descriptor too short\n");
printf(" AudioStreaming Interface Descriptor:\n"
" bLength %5u\n"
" bDescriptorType %5u\n"
" bDescriptorSubtype %5u ",
buf[0], buf[1], buf[2]);
switch (buf[2]) {
case 0x01: /* AS_GENERAL */
printf("(AS_GENERAL)\n");
if (buf[0] < 7)
printf(" Warning: Descriptor too short\n");
fmttag = buf[5] | (buf[6] << 8);
if (fmttag >= 0 && fmttag <= 5)
fmtptr = fmtItag[fmttag];
else if (fmttag >= 0x1000 && fmttag <= 0x1002)
fmtptr = fmtIItag[fmttag & 0xfff];
else if (fmttag >= 0x2000 && fmttag <= 0x2006)
fmtptr = fmtIIItag[fmttag & 0xfff];
printf(" bTerminalLink %5u\n"
" bDelay %5u frames\n"
" wFormatTag %5u %s\n",
buf[3], buf[4], fmttag, fmtptr);
dump_junk(buf, " ", 7);
break;
case 0x02: /* FORMAT_TYPE */
printf("(FORMAT_TYPE)\n");
if (buf[0] < 8)
printf(" Warning: Descriptor too short\n");
printf(" bFormatType %5u ", buf[3]);
switch (buf[3]) {
case 0x01: /* FORMAT_TYPE_I */
printf("(FORMAT_TYPE_I)\n");
j = buf[7] ? (buf[7]*3+8) : 14;
if (buf[0] < j)
printf(" Warning: Descriptor too short\n");
printf(" bNrChannels %5u\n"
" bSubframeSize %5u\n"
" bBitResolution %5u\n"
" bSamFreqType %5u %s\n",
buf[4], buf[5], buf[6], buf[7], buf[7] ? "Discrete" : "Continuous");
if (!buf[7])
printf(" tLowerSamFreq %7u\n"
" tUpperSamFreq %7u\n",
buf[8] | (buf[9] << 8) | (buf[10] << 16), buf[11] | (buf[12] << 8) | (buf[13] << 16));
else
for (i = 0; i < buf[7]; i++)
printf(" tSamFreq[%2u] %7u\n", i,
buf[8+3*i] | (buf[9+3*i] << 8) | (buf[10+3*i] << 16));
dump_junk(buf, " ", j);
break;
case 0x02: /* FORMAT_TYPE_II */
printf("(FORMAT_TYPE_II)\n");
j = buf[8] ? (buf[7]*3+9) : 15;
if (buf[0] < j)
printf(" Warning: Descriptor too short\n");
printf(" wMaxBitRate %5u\n"
" wSamplesPerFrame %5u\n"
" bSamFreqType %5u %s\n",
buf[4] | (buf[5] << 8), buf[6] | (buf[7] << 8), buf[8], buf[8] ? "Discrete" : "Continuous");
if (!buf[8])
printf(" tLowerSamFreq %7u\n"
" tUpperSamFreq %7u\n",
buf[9] | (buf[10] << 8) | (buf[11] << 16), buf[12] | (buf[13] << 8) | (buf[14] << 16));
else
for (i = 0; i < buf[8]; i++)
printf(" tSamFreq[%2u] %7u\n", i,
buf[9+3*i] | (buf[10+3*i] << 8) | (buf[11+3*i] << 16));
dump_junk(buf, " ", j);
break;
case 0x03: /* FORMAT_TYPE_III */
printf("(FORMAT_TYPE_III)\n");
j = buf[7] ? (buf[7]*3+8) : 14;
if (buf[0] < j)
printf(" Warning: Descriptor too short\n");
printf(" bNrChannels %5u\n"
" bSubframeSize %5u\n"
" bBitResolution %5u\n"
" bSamFreqType %5u %s\n",
buf[4], buf[5], buf[6], buf[7], buf[7] ? "Discrete" : "Continuous");
if (!buf[7])
printf(" tLowerSamFreq %7u\n"
" tUpperSamFreq %7u\n",
buf[8] | (buf[9] << 8) | (buf[10] << 16), buf[11] | (buf[12] << 8) | (buf[13] << 16));
else
for (i = 0; i < buf[7]; i++)
printf(" tSamFreq[%2u] %7u\n", i,
buf[8+3*i] | (buf[9+3*i] << 8) | (buf[10+3*i] << 16));
dump_junk(buf, " ", j);
break;
default:
printf("(unknown)\n"
" Invalid desc format type:");
dump_junk2(buf+4, buf[0]-4);
}
break;
case 0x03: /* FORMAT_SPECIFIC */
printf("(FORMAT_SPECIFIC)\n");
if (buf[0] < 5)
printf(" Warning: Descriptor too short\n");
fmttag = buf[3] | (buf[4] << 8);
if (fmttag >= 0 && fmttag <= 5)
fmtptr = fmtItag[fmttag];
else if (fmttag >= 0x1000 && fmttag <= 0x1002)
fmtptr = fmtIItag[fmttag & 0xfff];
else if (fmttag >= 0x2000 && fmttag <= 0x2006)
fmtptr = fmtIIItag[fmttag & 0xfff];
printf(" wFormatTag %5u %s\n", fmttag, fmtptr);
switch (fmttag) {
case 0x1001: /* MPEG */
if (buf[0] < 8)
printf(" Warning: Descriptor too short\n");
printf(" bmMPEGCapabilities 0x%04x\n",
buf[5] | (buf[6] << 8));
if (buf[5] & 0x01)
printf(" Layer I\n");
if (buf[5] & 0x02)
printf(" Layer II\n");
if (buf[5] & 0x04)
printf(" Layer III\n");
if (buf[5] & 0x08)
printf(" MPEG-1 only\n");
if (buf[5] & 0x10)
printf(" MPEG-1 dual-channel\n");
if (buf[5] & 0x20)
printf(" MPEG-2 second stereo\n");
if (buf[5] & 0x40)
printf(" MPEG-2 7.1 channel augmentation\n");
if (buf[5] & 0x80)
printf(" Adaptive multi-channel prediction\n");
printf(" MPEG-2 multilingual support: ");
switch (buf[6] & 3) {
case 0:
printf("Not supported\n");
break;
case 1:
printf("Supported at Fs\n");
break;
case 2:
printf("Reserved\n");
break;
default:
printf("Supported at Fs and 1/2Fs\n");
break;
}
printf(" bmMPEGFeatures 0x%02x\n", buf[7]);
printf(" Internal Dynamic Range Control: ");
switch ((buf[7] << 4) & 3) {
case 0:
printf("not supported\n");
break;
case 1:
printf("supported but not scalable\n");
break;
case 2:
printf("scalable, common boost and cut scaling value\n");
break;
default:
printf("scalable, separate boost and cut scaling value\n");
break;
}
dump_junk(buf, " ", 8);
break;
case 0x1002: /* AC-3 */
if (buf[0] < 10)
printf(" Warning: Descriptor too short\n");
printf(" bmBSID 0x%08x\n"
" bmAC3Features 0x%02x\n",
buf[5] | (buf[6] << 8) | (buf[7] << 16) | (buf[8] << 24), buf[9]);
if (buf[9] & 0x0)
printf(" RF mode\n");
if (buf[9] & 0x0)
printf(" Line mode\n");
if (buf[9] & 0x0)
printf(" Custom0 mode\n");
if (buf[9] & 0x0)
printf(" Custom1 mode\n");
printf(" Internal Dynamic Range Control: ");
switch ((buf[9] >> 4) & 3) {
case 0:
printf("not supported\n");
break;
case 1:
printf("supported but not scalable\n");
break;
case 2:
printf("scalable, common boost and cut scaling value\n");
break;
default:
printf("scalable, separate boost and cut scaling value\n");
break;
}
dump_junk(buf, " ", 8);
break;
default:
printf("(unknown)\n"
" Invalid desc format type:");
dump_junk2(buf+4, buf[0]-4);
}
break;
default:
printf(" Invalid desc subtype:");
dump_junk2(buf+3, buf[0]-3);
break;
}
}
static void dump_audiostreaming_endpoint(struct usb_dev_handle *dev, unsigned char *buf)
{
static const char *lockdelunits[] = { "Undefined", "Milliseconds", "Decoded PCM samples", "Reserved" };
unsigned int lckdelidx;
if (buf[1] != USB_DT_CS_ENDPOINT)
printf(" Warning: Invalid descriptor\n");
else if (buf[0] < 7)
printf(" Warning: Descriptor too short\n");
printf(" AudioControl Endpoint Descriptor:\n"
" bLength %5u\n"
" bDescriptorType %5u\n"
" bDescriptorSubtype %5u (%s)\n"
" bmAttributes 0x%02x\n",
buf[0], buf[1], buf[2], buf[2] == 1 ? "EP_GENERAL" : "invalid", buf[3]);
if (buf[3] & 1)
printf(" Sampling Frequency\n");
if (buf[3] & 2)
printf(" Pitch\n");
if (buf[3] & 128)
printf(" MaxPacketsOnly\n");
lckdelidx = buf[4];
if (lckdelidx > 3)
lckdelidx = 3;
printf(" bLockDelayUnits %5u %s\n"
" wLockDelay %5u %s\n",
buf[4], lockdelunits[lckdelidx], buf[5] | (buf[6] << 8), lockdelunits[lckdelidx]);
dump_junk(buf, " ", 7);
}
static void dump_midistreaming_interface(struct usb_dev_handle *dev, unsigned char *buf)
{
static const char *jacktypes[] = {"Undefined", "Embedded", "External"};
char jackstr[128];
unsigned int j, tlength, capssize;
unsigned long caps;
if (buf[1] != USB_DT_CS_INTERFACE)
printf(" Warning: Invalid descriptor\n");
else if (buf[0] < 3)
printf(" Warning: Descriptor too short\n");
printf( " MIDIStreaming Interface Descriptor:\n"
" bLength %5u\n"
" bDescriptorType %5u\n"
" bDescriptorSubtype %5u ",
buf[0], buf[1], buf[2]);
switch (buf[2]) {
case 0x01:
printf("(HEADER)\n");
if (buf[0] < 7)
printf(" Warning: Descriptor too short\n");
tlength = buf[5] | (buf[6] << 8);
printf( " bcdADC %2x.%02x\n"
" wTotalLength %5u\n",
buf[4], buf[3], tlength);
dump_junk(buf, " ", 7);
break;
case 0x02:
printf("(MIDI_IN_JACK)\n");
if (buf[0] < 6)
printf(" Warning: Descriptor too short\n");
get_string(dev, jackstr, sizeof(jackstr), buf[5]);
printf( " bJackType %5u %s\n"
" bJackID %5u\n"
" iJack %5u %s\n",
buf[3], buf[3] < 3 ? jacktypes[buf[3]] : "Invalid",
buf[4], buf[5], jackstr);
dump_junk(buf, " ", 6);
break;
case 0x03:
printf("(MIDI_OUT_JACK)\n");
if (buf[0] < 9)
printf(" Warning: Descriptor too short\n");
printf( " bJackType %5u %s\n"
" bJackID %5u\n"
" bNrInputPins %5u\n",
buf[3], buf[3] < 3 ? jacktypes[buf[3]] : "Invalid",
buf[4], buf[5]);
for (j=0; j < buf[5]; j++) {
printf( " baSourceID(%2u) %5u\n"
" BaSourcePin(%2u) %5u\n",
j, buf[2*j+6], j, buf[2*j+7]);
}
j = 6+buf[5]*2; /* midi10.pdf says, incorrectly: 5+2*p */
get_string(dev, jackstr, sizeof(jackstr), buf[j]);
printf( " iJack %5u %s\n",
buf[j], jackstr);
dump_junk(buf, " ", j+1);
break;
case 0x04:
printf("(ELEMENT)\n");
if (buf[0] < 12)
printf(" Warning: Descriptor too short\n");
printf( " bElementID %5u\n"
" bNrInputPins %5u\n",
buf[3], buf[4]);
for(j=0; j < buf[4]; j++) {
printf( " baSourceID(%2u) %5u\n"
" BaSourcePin(%2u) %5u\n",
j, buf[2*j+5], j, buf[2*j+6]);
}
j = 5+buf[4]*2;
printf( " bNrOutputPins %5u\n"
" bInTerminalLink %5u\n"
" bOutTerminalLink %5u\n"
" bElCapsSize %5u\n",
buf[j], buf[j+1], buf[j+2], buf[j+3]);
capssize = buf[j+3];
caps = 0;
for(j=0; j < capssize; j++) {
caps |= (buf[j+9+buf[4]*2] << (8*j));
}
printf( " bmElementCaps 0x%08lx\n", caps);
if (caps & 0x01)
printf( " Undefined\n");
if (caps & 0x02)