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control.cpython-39.pyc
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a j��Y#" � @ s� d Z dZg d�ZddlmZ ddlmZ dd� ZdZdZ dZ dZ d Z d Z d d d �Zd d d�Zd dd�Zd dd�Zd!dd�Zdd� Zdd� Zdd� Zdd � ZdS )"a� usb.control - USB standard control requests This module exports: get_status - get recipeint status 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 zWander Lairson Costa)� get_status� clear_feature� set_feature�get_descriptor�set_descriptor�get_configuration�set_configuration� get_interface� set_interface� ENDPOINT_HALT�FUNCTION_SUSPEND�DEVICE_REMOTE_WAKEUP� U1_ENABLE� U2_ENABLE� LTM_ENABLE� Nc C sh | d u rt j}d}n<t| tj�r.t j}| j}n"t| tj�rHt j}| j }nt d��t � |t j |�}||fS )Nr zInvalid recipient.) �util�CTRL_RECIPIENT_DEVICE� isinstance�coreZ Interface�CTRL_RECIPIENT_INTERFACE�bInterfaceNumberZEndpointZCTRL_RECIPIENT_ENDPOINTZbEndpointAddress� ValueError�build_request_type�CTRL_TYPE_STANDARD)� recipient� direction�r�wIndex� bmRequestType� r �//usr/lib/python3.9/site-packages/usb/control.py�_parse_recipientA s �r! � �0 �1 �2 c C s6 t |tj�\}}| j|d|dd�}|d |d d> B S )ae Return the status for the specified recipient. dev is the Device object to which the request will be sent to. The recipient can be None (on which the status will be queried from the device), an Interface or Endpoint descriptors. The status value is returned as an integer with the lower word being the two bytes status value. r � �r �bRequestr �data_or_wLengthr" � )r! r �CTRL_IN� ctrl_transfer)�devr r r �retr r r r \ s �r c C s: |t kr| �|� n"t|tj�\}}| j|d||d� dS )a Clear/disable a specific feature. dev is the Device object to which the request will be sent to. feature is the feature you want to disable. The recipient can be None (on which the status will be queried from the device), an Interface or Endpoint descriptors. r" �r r( r �wValueN)r Z 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. dev is the Device object to which the request will be sent to. feature is the feature you want to enable. The recipient can be None (on which the status will be queried from the device), an Interface or Endpoint descriptors. � 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. dev is the Device object to which the request will be sent to. desc_size is the descriptor size. desc_type and desc_index are the descriptor type and index, respectively. wIndex index is used for string descriptors and represents the Language ID. For other types of descriptors, it is zero. r* � �r r( r0 r r) �r r r+ r r r, )r- Z desc_size� desc_type� desc_indexr r0 r r r r r � s ��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. dev is the Device object to which the request will be sent to. The desc parameter is the descriptor to be sent to the device. desc_type and desc_index are the descriptor type and index, respectively. wIndex index is used for string descriptors and represents the Language ID. For other types of descriptors, it is zero. 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. dev is the Device object to which the request will be sent to. This function differs from the Device.get_active_configuration method because the later may use cached data, while this function always does a device request. r* r" )r( r) r r6 )r- r r r r r � s ���r c C s | � |� dS )zrSet the current device configuration. dev is the Device object to which the request will be sent to. 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. dev is the Device object to which the request will be sent to. � 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. dev is the Device object to which the request will be sent to. N)Zset_interface_altsetting)r- r ZbAlternateSettingr r r r � s r )N)N)N)r )N)�__doc__� __author__�__all__Zusb.utilr Zusb.corer r! r r r r r r r r r r r r r r r r r r r �<module> s(