diff options
Diffstat (limited to 'libusb/os/linux_usbfs.c')
-rw-r--r-- | libusb/os/linux_usbfs.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/libusb/os/linux_usbfs.c b/libusb/os/linux_usbfs.c index 1ebe36c..b39b702 100644 --- a/libusb/os/linux_usbfs.c +++ b/libusb/os/linux_usbfs.c @@ -95,9 +95,6 @@ static int sysfs_available = -1; /* how many times have we initted (and not exited) ? */ static int init_count = 0; -/* have no authority to operate usb device directly */ -static int no_enumeration = 0; - /* Serialize scan-devices, event-thread, and poll */ usbi_mutex_static_t linux_hotplug_lock = USBI_MUTEX_INITIALIZER; @@ -119,6 +116,11 @@ struct config_descriptor { size_t actual_len; }; +struct linux_context_priv { + /* no enumeration or hot-plug detection */ + int no_device_discovery; +}; + struct linux_device_priv { char *sysfs_dir; void *descriptors; @@ -354,6 +356,7 @@ static int op_init(struct libusb_context *ctx) struct kernel_version kversion; const char *usbfs_path; int r; + struct linux_context_priv *cpriv = usbi_get_context_priv(ctx); if (get_kernel_version(ctx, &kversion) < 0) return LIBUSB_ERROR_OTHER; @@ -397,7 +400,7 @@ static int op_init(struct libusb_context *ctx) } } - if (no_enumeration) { + if (cpriv->no_device_discovery) { return LIBUSB_SUCCESS; } @@ -421,9 +424,9 @@ static int op_init(struct libusb_context *ctx) static void op_exit(struct libusb_context *ctx) { - UNUSED(ctx); + struct linux_context_priv *cpriv = usbi_get_context_priv(ctx); - if (no_enumeration) { + if (cpriv->no_device_discovery) { return; } @@ -436,12 +439,13 @@ static void op_exit(struct libusb_context *ctx) static int op_set_option(struct libusb_context *ctx, enum libusb_option option, va_list ap) { - UNUSED(ctx); UNUSED(ap); if (option == LIBUSB_OPTION_NO_DEVICE_DISCOVERY) { - usbi_dbg(ctx, "no enumeration will be performed"); - no_enumeration = 1; + struct linux_context_priv *cpriv = usbi_get_context_priv(ctx); + + usbi_dbg(ctx, "no device discovery will be performed"); + cpriv->no_device_discovery = 1; return LIBUSB_SUCCESS; } @@ -2801,6 +2805,7 @@ const struct usbi_os_backend usbi_backend = { .handle_events = op_handle_events, + .context_priv_size = sizeof(struct linux_context_priv), .device_priv_size = sizeof(struct linux_device_priv), .device_handle_priv_size = sizeof(struct linux_device_handle_priv), .transfer_priv_size = sizeof(struct linux_transfer_priv), |