Add documentation for Soc

ctru-rs/src/services/soc.rs

@@ -2,15 +2,28 @@ use libctru::{socInit, socExit};
 
 use libc::{memalign, free};
 
+/// Soc service. Initializing this service will enable the use of network sockets and utilities
+/// such as those found in `std::net`. The service will be closed when this struct is is dropped.
 pub struct Soc {
     soc_mem: *mut u32,
 }
 
 impl Soc {
+    /// Initialize the Soc service with a default buffer size of 0x100000 bytes
+    ///
+    /// # Errors
+    ///
+    /// This function will return an error if the `Soc` service is already initialized
     pub fn init() -> ::Result<Soc> {
         Soc::init_with_buffer_size(0x100000)
     }
 
+    /// Initialize the Soc service with a custom buffer size in bytes. The size should be
+    /// 0x100000 bytes or greater.
+    ///
+    /// # Errors
+    ///
+    /// This function will return an error if the `Soc` service is already initialized
     pub fn init_with_buffer_size(num_bytes: usize) -> ::Result<Soc> {
         unsafe {
             let soc_mem = memalign(0x1000, num_bytes) as *mut u32;