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diff --git a/lib/libusb/libusb.h b/lib/libusb/libusb.h
--- a/lib/libusb/libusb.h
+++ b/lib/libusb/libusb.h
@@ -260,7 +260,8 @@
LIBUSB_OPTION_USE_USBDK = 1,
LIBUSB_OPTION_NO_DEVICE_DISCOVERY = 2,
LIBUSB_OPTION_WEAK_AUTHORITY = 2,
- LIBUSB_OPTION_MAX = 3,
+ LIBUSB_OPTION_LOG_CB = 5,
+ LIBUSB_OPTION_MAX = 4,
};
/* libusb structures */
@@ -271,6 +272,11 @@
struct libusb_device_handle;
struct libusb_hotplug_callback_handle_struct;
+typedef struct libusb_context libusb_context;
+
+typedef void (*libusb_log_cb)(libusb_context *ctx, enum libusb_log_level,
+ const char *str);
+
struct libusb_pollfd {
int fd;
short events;
@@ -593,6 +599,7 @@
int libusb_free_streams(libusb_device_handle *dev, unsigned char *endpoints, int num_endpoints);
void libusb_transfer_set_stream_id(struct libusb_transfer *transfer, uint32_t stream_id);
uint32_t libusb_transfer_get_stream_id(struct libusb_transfer *transfer);
+int libusb_set_option(libusb_context *ctx, enum libusb_option option, ...);
#if 0
{ /* indent fix */
diff --git a/lib/libusb/libusb10.h b/lib/libusb/libusb10.h
--- a/lib/libusb/libusb10.h
+++ b/lib/libusb/libusb10.h
@@ -117,6 +117,9 @@
libusb_pollfd_added_cb fd_added_cb;
libusb_pollfd_removed_cb fd_removed_cb;
void *fd_cb_user_data;
+ libusb_log_cb log_cb;
+ enum libusb_log_level log_level;
+ int no_discovery;
};
struct libusb_device {
diff --git a/lib/libusb/libusb10.c b/lib/libusb/libusb10.c
--- a/lib/libusb/libusb10.c
+++ b/lib/libusb/libusb10.c
@@ -243,6 +243,9 @@
}
libusb10_add_pollfd(ctx, &ctx->ctx_poll, NULL, ctx->event, POLLIN);
+ ctx->log_level = -1;
+ ctx->log_cb = NULL;
+ ctx->no_discovery = false;
pthread_mutex_lock(&default_context_lock);
if (usbi_default_context == NULL) {
@@ -1806,7 +1809,71 @@
snprintf(new_fmt, sizeof(new_fmt), "%s: %s\n", log_prefix[level], fmt);
vsnprintf(buffer, sizeof(buffer), new_fmt, args);
- fputs(buffer, stdout);
+ if (ctx->log_cb)
+ ctx->log_cb(ctx, level, buffer);
+ else
+ fputs(buffer, stdout);
+
+ va_end(args);
+}
+
+int
+libusb_set_option(libusb_context *ctx, enum libusb_option option, ...)
+{
+ int err = LIBUSB_SUCCESS;
+ enum libusb_log_level level;
+ va_list args;
+ libusb_log_cb callback;
+
+ ctx = GET_CONTEXT(ctx);
+ va_start(args, option);
+
+ switch (option) {
+ case LIBUSB_OPTION_LOG_LEVEL:
+ level = va_arg(args, enum libusb_log_level);
+ if (level < LIBUSB_LOG_LEVEL_NONE ||
+ level > LIBUSB_LOG_LEVEL_DEBUG) {
+ err = LIBUSB_ERROR_INVALID_PARAM;
+ break;
+ }
+
+ break;
+ case LIBUSB_OPTION_LOG_CB:
+ callback = va_arg(args, libusb_log_cb);
+ break;
+ }
+
+ if (option >= LIBUSB_OPTION_MAX) {
+ err = LIBUSB_ERROR_INVALID_PARAM;
+ goto end;
+ }
+
+ switch (option) {
+ case LIBUSB_OPTION_LOG_LEVEL:
+ if (ctx->debug_fixed)
+ break;
+ ctx->debug = level;
+ break;
+ case LIBUSB_OPTION_LOG_CB:
+ ctx->log_cb = callback;
+ break;
+ case LIBUSB_OPTION_NO_DEVICE_DISCOVERY:
+ ctx->no_discovery = true;
+ break;
+ /*
+ * We don't handle USBDK as it is a windows
+ * backend specified SDK
+ */
+ case LIBUSB_OPTION_USE_USBDK:
+ break;
+ case LIBUSB_OPTION_MAX:
+ default:
+ err = LIBUSB_ERROR_INVALID_PARAM;
+ break;
+ }
+
+end:
va_end(args);
+ return (err);
}
diff --git a/lib/libusb/libusb10_hotplug.c b/lib/libusb/libusb10_hotplug.c
--- a/lib/libusb/libusb10_hotplug.c
+++ b/lib/libusb/libusb10_hotplug.c
@@ -346,7 +346,7 @@
ctx = GET_CONTEXT(ctx);
- if (ctx->usb_event_mode == usb_event_none) {
+ if (ctx->usb_event_mode == usb_event_none && !ctx->no_discovery) {
HOTPLUG_LOCK(ctx);
if (!netlink_init(ctx) && !devd_init(ctx))
ctx->usb_event_mode = usb_event_scan;
@@ -364,8 +364,8 @@
return (LIBUSB_ERROR_NO_MEM);
HOTPLUG_LOCK(ctx);
- if (ctx->hotplug_handler == NO_THREAD) {
- libusb_hotplug_enumerate(ctx, &ctx->hotplug_devs);
+ if (ctx->hotplug_handler == NO_THREAD && !ctx->no_discovery) {
+ libusb_hotplug_enumerate(ctx, &ctx->hotplug_devs);
if (pthread_create(&ctx->hotplug_handler, NULL,
&libusb_hotplug_scan, ctx) != 0)

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