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Kernel/USB: Fetch configuration descriptors on enumeration

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This also introduces a new class, `USBConfiguration` that stores a
configuration. The device, when instructed, sets this configuration and
holds a pointer to it so we have a record of what configuration is
currently active.
This commit is contained in:
Jesse Buhagiar 2022-04-11 20:18:31 +10:00 • committed by Andreas Kling
commit dac26f89cb
Notes: sideshowbarker 2024-07-17 11:36:14 +09:00
3 changed files with 62 additions and 0 deletions
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4
Kernel/Bus/USB/USBDevice.h
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@ -8,11 +8,14 @@
#include <AK/OwnPtr.h>
#include <AK/Types.h>
#include <AK/Vector.h>
#include <Kernel/Bus/USB/USBConfiguration.h>
#include <Kernel/Bus/USB/USBPipe.h>
namespace Kernel::USB {
class USBController;
class USBConfiguration;
//
// Some nice info from FTDI on device enumeration and how some of this
@ -55,6 +58,7 @@ protected:
u16 m_vendor_id { 0 }; // This device's vendor ID assigned by the USB group
u16 m_product_id { 0 }; // This device's product ID assigned by the USB group
USBDeviceDescriptor m_device_descriptor {}; // Device Descriptor obtained from USB Device
Vector<USBConfiguration> m_configurations; // Configurations for this device
NonnullRefPtr<USBController> m_controller;
NonnullOwnPtr<Pipe> m_default_pipe; // Default communication pipe (endpoint0) used during enumeration