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clear_feature - clear a recipient feature
set_feature - set a recipient feature
get_descriptor - get a device descriptor
set_descriptor - set a device descriptor
get_configuration - get a device configuration
set_configuration - set a device configuration
get_interface - get a device interface
set_interface - set a device interface
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clear_haltr! r �CTRL_OUTr, �r- Zfeaturer r r r r r r o s �r c C s& t |tj�\}}| j|d||d� dS )a Set/enable a specific feature.
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� r/ N)r! r r1 r, r2 r r r r � s �r c C s4 ||d> B }t �t jt jt j�}| j|d|||d�S )ag Return the specified descriptor.
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��r c C s8 ||d> B }t �t jt jt j�}| j|d|||d� dS )a� Update an existing descriptor or add a new one.
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r* � r5 N)r r r1 r r r, )r- Zdescr7 r8 r r0 r r r r r � s ��r c C s( t �t jt jt j�}| j|ddd�d S )a, Get the current active configuration of the device.
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function always does a device request.
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N)r )r- ZbConfigurationNumberr r r r � s r c C s* t �t jt jt j�}| j|d|dd�d S )z�Get the current alternate setting of the interface.
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r" r' r )r r r+ r r r, )r- r r r r r r � s ���r c C s | � ||� dS )zxSet the alternate setting of the interface.
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