initial buildroot for linux 5.15

package/libusb/0001-linux_usbfs-Fix-parsing-of-descriptors-for-multi-con.patch

@@ -0,0 +1,62 @@
+From 623e2a995d156e115c91f56a3ec691bdc333df8b Mon Sep 17 00:00:00 2001
+From: Chris Dickens <christopher.a.dickens@gmail.com>
+Date: Sun, 13 Dec 2020 15:49:19 -0800
+Subject: [PATCH 1/1] linux_usbfs: Fix parsing of descriptors for
+ multi-configuration devices
+
+Commit e2be556bd2 ("linux_usbfs: Parse config descriptors during device
+initialization") introduced a regression for devices with multiple
+configurations. The logic that verifies the reported length of the
+configuration descriptors failed to count the length of the
+configuration descriptor itself and would truncate the actual length by
+9 bytes, leading to a parsing error for subsequent descriptors.
+
+Closes #825
+
+Signed-off-by: Chris Dickens <christopher.a.dickens@gmail.com>
+(cherry picked from commit f6d2cb561402c3b6d3627c0eb89e009b503d9067)
+Signed-off-by: John Keeping <john@metanate.com>
+---
+ libusb/os/linux_usbfs.c | 12 ++++++++----
+ 1 file changed, 8 insertions(+), 4 deletions(-)
+
+diff --git a/libusb/os/linux_usbfs.c b/libusb/os/linux_usbfs.c
+index fb2ed53..4d2dc8d 100644
+--- a/libusb/os/linux_usbfs.c
++++ b/libusb/os/linux_usbfs.c
+@@ -641,7 +641,12 @@ static int seek_to_next_config(struct libusb_context *ctx,
+ 	uint8_t *buffer, size_t len)
+ {
+ 	struct usbi_descriptor_header *header;
+-	int offset = 0;
++	int offset;
++
++	/* Start seeking past the config descriptor */
++	offset = LIBUSB_DT_CONFIG_SIZE;
++	buffer += LIBUSB_DT_CONFIG_SIZE;
++	len -= LIBUSB_DT_CONFIG_SIZE;
+ 
+ 	while (len > 0) {
+ 		if (len < 2) {
+@@ -718,7 +723,7 @@ static int parse_config_descriptors(struct libusb_device *dev)
+ 		}
+ 
+ 		if (priv->sysfs_dir) {
+-			 /*
++			/*
+ 			 * In sysfs wTotalLength is ignored, instead the kernel returns a
+ 			 * config descriptor with verified bLength fields, with descriptors
+ 			 * with an invalid bLength removed.
+@@ -727,8 +732,7 @@ static int parse_config_descriptors(struct libusb_device *dev)
+ 			int offset;
+ 
+ 			if (num_configs > 1 && idx < num_configs - 1) {
+-				offset = seek_to_next_config(ctx, buffer + LIBUSB_DT_CONFIG_SIZE,
+-							     remaining - LIBUSB_DT_CONFIG_SIZE);
++				offset = seek_to_next_config(ctx, buffer, remaining);
+ 				if (offset < 0)
+ 					return offset;
+ 				sysfs_config_len = (uint16_t)offset;
+-- 
+2.30.1
+

package/libusb/Config.in

@@ -0,0 +1,19 @@
+config BR2_PACKAGE_LIBUSB
+	bool "libusb"
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_TOOLCHAIN_GCC_AT_LEAST_4_9 # _Thread_local
+	help
+	  Userspace library for accessing USB devices
+
+	  http://libusb.info/
+
+if BR2_PACKAGE_LIBUSB
+
+config BR2_PACKAGE_LIBUSB_EXAMPLES
+	bool "build libusb examples"
+
+endif
+
+comment "libusb needs a toolchain w/ threads, gcc >= 4.9"
+	depends on !BR2_TOOLCHAIN_HAS_THREADS || \
+		!BR2_TOOLCHAIN_GCC_AT_LEAST_4_9

package/libusb/libusb.hash

@@ -0,0 +1,3 @@
+# Locally computed:
+sha256  7efd2685f7b327326dcfb85cee426d9b871fd70e22caa15bb68d595ce2a2b12a  libusb-1.0.24.tar.bz2
+sha256  5df07007198989c622f5d41de8d703e7bef3d0e79d62e24332ee739a452af62a  COPYING

package/libusb/libusb.mk

@@ -0,0 +1,38 @@
+################################################################################
+#
+# libusb
+#
+################################################################################
+
+LIBUSB_VERSION_MAJOR = 1.0
+LIBUSB_VERSION = $(LIBUSB_VERSION_MAJOR).24
+LIBUSB_SOURCE = libusb-$(LIBUSB_VERSION).tar.bz2
+LIBUSB_SITE = https://github.com/libusb/libusb/releases/download/v$(LIBUSB_VERSION)
+LIBUSB_LICENSE = LGPL-2.1+
+LIBUSB_LICENSE_FILES = COPYING
+LIBUSB_CPE_ID_VENDOR = libusb
+LIBUSB_DEPENDENCIES = host-pkgconf
+LIBUSB_INSTALL_STAGING = YES
+
+# Avoid the discovery of udev for the host variant
+HOST_LIBUSB_CONF_OPTS = --disable-udev
+HOST_LIBUSB_DEPENDENCIES = host-pkgconf
+
+ifeq ($(BR2_PACKAGE_HAS_UDEV),y)
+LIBUSB_DEPENDENCIES += udev
+else
+LIBUSB_CONF_OPTS += --disable-udev
+endif
+
+ifeq ($(BR2_PACKAGE_LIBUSB_EXAMPLES),y)
+LIBUSB_CONF_OPTS += --enable-examples-build
+define LIBUSB_INSTALL_TARGET_EXAMPLES
+	$(foreach example,listdevs xusb fxload hotplugtest testlibusb dpfp dpfp_threaded sam3u_benchmark,
+		$(INSTALL) -D -m0755 $(@D)/examples/$(example) $(TARGET_DIR)/usr/bin/$(example)
+	)
+endef
+LIBUSB_POST_INSTALL_TARGET_HOOKS += LIBUSB_INSTALL_TARGET_EXAMPLES
+endif
+
+$(eval $(autotools-package))
+$(eval $(host-autotools-package))