HelenOS sources
This source file includes following definitions.
- print_usb_device
- print_usb_bus
- list
#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <str_error.h>
#include <stdbool.h>
#include <getopt.h>
#include <devman.h>
#include <loc.h>
#include <usb_iface.h>
#include <str.h>
#include "usbinfo.h"
#define MAX_PATH_LENGTH 1024
static void print_usb_device(devman_handle_t handle)
{
char path[MAX_PATH_LENGTH];
errno_t rc = devman_fun_get_path(handle, path, MAX_PATH_LENGTH);
if (rc != EOK) {
printf(NAME "Failed to get path for device %" PRIun "\n", handle);
return;
}
printf("\tDevice %" PRIun ": %s\n", handle, path);
}
static void print_usb_bus(service_id_t svc)
{
devman_handle_t hc_handle = 0;
errno_t rc = devman_fun_sid_to_handle(svc, &hc_handle);
if (rc != EOK) {
printf(NAME ": Error resolving handle of HC with SID %"
PRIun ", skipping.\n", svc);
return;
}
char path[MAX_PATH_LENGTH];
rc = devman_fun_get_path(hc_handle, path, sizeof(path));
if (rc != EOK) {
printf(NAME ": Error resolving path of HC with SID %"
PRIun ", skipping.\n", svc);
return;
}
printf("Bus %" PRIun ": %s\n", svc, path);
char name[10];
rc = devman_fun_get_name(hc_handle, name, sizeof(name));
if (rc != EOK) {
printf(NAME ": Error resolving name of HC with SID %"
PRIun ", skipping.\n", svc);
return;
}
devman_handle_t fh;
path[str_size(path) - str_size(name) - 1] = '\0';
rc = devman_fun_get_handle(path, &fh, IPC_FLAG_BLOCKING);
if (rc != EOK) {
printf(NAME ": Error resolving parent handle of HC with"
" SID %" PRIun ", skipping.\n", svc);
return;
}
devman_handle_t dh;
rc = devman_fun_get_child(fh, &dh);
if (rc != EOK) {
printf(NAME ": Error resolving parent handle of HC with"
" SID %" PRIun ", skipping.\n", svc);
return;
}
devman_handle_t *fhs = 0;
size_t count;
rc = devman_dev_get_functions(dh, &fhs, &count);
if (rc != EOK) {
printf(NAME ": Error siblings of HC with"
" SID %" PRIun ", skipping.\n", svc);
return;
}
for (size_t i = 0; i < count; ++i) {
if (fhs[i] != hc_handle)
print_usb_device(fhs[i]);
}
free(fhs);
}
void list(void)
{
category_id_t usbhc_cat;
service_id_t *svcs;
size_t count;
errno_t rc;
rc = loc_category_get_id(USB_HC_CATEGORY, &usbhc_cat, 0);
if (rc != EOK) {
printf(NAME ": Error resolving category '%s'",
USB_HC_CATEGORY);
return;
}
rc = loc_category_get_svcs(usbhc_cat, &svcs, &count);
if (rc != EOK) {
printf(NAME ": Error getting list of host controllers.\n");
return;
}
for (unsigned int i = 0; i < count; ++i) {
print_usb_bus(svcs[i]);
}
free(svcs);
}
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