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prevent panic when call read_control() #38

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prevent panic when call read_control() #38

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4 changes: 2 additions & 2 deletions src/device_handle.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -401,7 +401,7 @@ impl<'a> DeviceHandle<'a> {
/// This function returns a list of languages that can be used to read the device's string
/// descriptors.
pub fn read_languages(&self, timeout: Duration) -> ::Result<Vec<Language>> {
let mut buf = Vec::<u8>::with_capacity(256);
let mut buf = Vec::<u8>::with_capacity(255);

let mut buf_slice = unsafe {
slice::from_raw_parts_mut((&mut buf[..]).as_mut_ptr(), buf.capacity())
Expand All @@ -428,7 +428,7 @@ impl<'a> DeviceHandle<'a> {
///
/// `language` should be one of the languages returned from [`read_languages`](#method.read_languages).
pub fn read_string_descriptor(&self, language: Language, index: u8, timeout: Duration) -> ::Result<String> {
let mut buf = Vec::<u8>::with_capacity(256);
let mut buf = Vec::<u8>::with_capacity(255);

let mut buf_slice = unsafe {
slice::from_raw_parts_mut((&mut buf[..]).as_mut_ptr(), buf.capacity())
Expand Down