kernel/devices: add some documentation

1 files changed, 5 insertions, 0 deletions

diff --git a/kernel/kernel/drivers/pseudo/null.hpp b/kernel/kernel/drivers/pseudo/null.hpp
index f34d3a0a..6a736c33 100644
--- a/kernel/kernel/drivers/pseudo/null.hpp
+++ b/kernel/kernel/drivers/pseudo/null.hpp
@@ -16,6 +16,11 @@
 namespace kernel::drivers::pseudo
 {
 
+  //! The driver for the "null" character device (e.g. /dev/null)
+  //!
+  //! The null device always perform empty reads, reading nothing, and discards all writes.
+  //!
+  //! @note This drivers reserves major number 1 and minor number 3.
   struct null final : kapi::devices::driver, kernel::bus::pseudo_claim
   {
     [[nodiscard]] auto probe(kapi::devices::device & device) -> kstd::result<void> override;