README with purpose and initial overview.
diff --git a/README b/README
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+++ b/README
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+libkmod - linux kernel module handling library
+
+ABSTRACT
+========
+
+libkmod was created to allow programs to easily insert, remove and
+list modules, also checking its properties, dependencies and aliases.
+
+there is no shared/global context information and it can be used by
+multiple sites on a single program, also being able to be used from
+threads, although it's not thread safe (you must lock explicitly).
+
+
+OVERVIEW
+========
+
+Every user should create and manage it's own library context with:
+
+ struct kmod_ctx *ctx = kmod_new(kernel_dirname);
+ kmod_unref(ctx);
+
+
+Modules can be created with by various means:
+
+ struct kmod_module *mod;
+ int err;
+
+ err = kmod_module_new_from_path(ctx, path, &mod);
+ if (err < 0) {
+ /* code */
+ } else {
+ /* code */
+ kmod_module_unref(mod);
+ }
+
+ err = kmod_module_new_from_name(ctx, name, &mod);
+ if (err < 0) {
+ /* code */
+ } else {
+ /* code */
+ kmod_module_unref(mod);
+ }
+
+
+Or could be resolved from a known alias to a list of alternatives:
+
+ struct kmod_list *list, *itr;
+ int err;
+ err = kmod_module_new_from_lookup(ctx, alias, &list);
+ if (err < 0) {
+ /* code */
+ } else {
+ kmod_list_foreach(itr, list) {
+ struct kmod_module *mod = kmod_module_get_module(itr);
+ /* code */
+ }
+ }
+