3 use system_error::SystemError;
64     fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> {  in show()  argument
66         let fb = fb_dev.framebuffer().ok_or(SystemError::ENODEV)?;  in show()
88     fn store(&self, _kobj: Arc<dyn KObject>, _buf: &[u8]) -> Result<usize, SystemError> {  in store()  argument
90         return Err(SystemError::ENOSYS);  in store()
93     fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> {  in show()  argument
95         let fb = fb_dev.framebuffer().ok_or(SystemError::ENODEV)?;  in show()
119     fn store(&self, _kobj: Arc<dyn KObject>, _buf: &[u8]) -> Result<usize, SystemError> {  in store()  argument
121         return Err(SystemError::ENOSYS);  in store()
142     fn show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError> {  in show()  argument
147     fn store(&self, _kobj: Arc<dyn KObject>, _buf: &[u8]) -> Result<usize, SystemError> {  in store()  argument
169     fn show(&self, _kobj: Arc<dyn KObject>, _buf: &mut [u8]) -> Result<usize, SystemError> {  in show()  argument
174     fn store(&self, _kobj: Arc<dyn KObject>, _buf: &[u8]) -> Result<usize, SystemError> {  in store()  argument
195     fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> {  in show()  argument
197         let fb = fb_dev.framebuffer().ok_or(SystemError::ENODEV)?;  in show()
203     fn store(&self, _kobj: Arc<dyn KObject>, _buf: &[u8]) -> Result<usize, SystemError> {  in store()  argument
224     fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> {  in show()  argument
226         let fb = fb_dev.framebuffer().ok_or(SystemError::ENODEV)?;  in show()
235     fn store(&self, _kobj: Arc<dyn KObject>, _buf: &[u8]) -> Result<usize, SystemError> {  in store()  argument
256     fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> {  in show()  argument
258         let fb = fb_dev.framebuffer().ok_or(SystemError::ENODEV)?;  in show()
280     fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> {  in show()  argument
282         let fb = fb_dev.framebuffer().ok_or(SystemError::ENODEV)?;  in show()
289     fn store(&self, _kobj: Arc<dyn KObject>, _buf: &[u8]) -> Result<usize, SystemError> {  in store()  argument
310     fn show(&self, kobj: Arc<dyn KObject>, buf: &mut [u8]) -> Result<usize, SystemError> {  in show()  argument
312         let fb = fb_dev.framebuffer().ok_or(SystemError::ENODEV)?;  in show()
318     fn store(&self, _kobj: Arc<dyn KObject>, _buf: &[u8]) -> Result<usize, SystemError> {  in store()  argument