RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 06:07:34 +00:00
Code Issues Activity Actions

Kernel/USB: Add all USB 2.0 bmRequestType fields

Browse source
This commit is contained in:
Luke 2021-08-10 03:10:54 +01:00 • committed by Andreas Kling
parent 5578a5a32d
commit 3b4f71e4df
3 changed files with 18 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

7
Kernel/Bus/USB/USBDevice.cpp
View file

@ -46,9 +46,8 @@ KResult Device::enumerate()
{
USBDeviceDescriptor dev_descriptor {};
// FIXME: 0x100 is a magic number for now, as I'm not quite sure how these are constructed....
// Send 8-bytes to get at least the `max_packet_size` from the device
auto transfer_length_or_error = m_default_pipe->control_transfer(USB_DEVICE_REQUEST_DEVICE_TO_HOST, USB_REQUEST_GET_DESCRIPTOR, 0x100, 0, 8, &dev_descriptor);
auto transfer_length_or_error = m_default_pipe->control_transfer(USB_REQUEST_TRANSFER_DIRECTION_DEVICE_TO_HOST, USB_REQUEST_GET_DESCRIPTOR, (DESCRIPTOR_TYPE_DEVICE << 8), 0, 8, &dev_descriptor);
if (transfer_length_or_error.is_error())
return transfer_length_or_error.error();
@ -62,7 +61,7 @@ KResult Device::enumerate()
VERIFY(dev_descriptor.descriptor_header.descriptor_type == DESCRIPTOR_TYPE_DEVICE);
m_default_pipe->set_max_packet_size(dev_descriptor.max_packet_size);
transfer_length_or_error = m_default_pipe->control_transfer(USB_DEVICE_REQUEST_DEVICE_TO_HOST, USB_REQUEST_GET_DESCRIPTOR, 0x100, 0, sizeof(USBDeviceDescriptor), &dev_descriptor);
transfer_length_or_error = m_default_pipe->control_transfer(USB_REQUEST_TRANSFER_DIRECTION_DEVICE_TO_HOST, USB_REQUEST_GET_DESCRIPTOR, (DESCRIPTOR_TYPE_DEVICE << 8), 0, sizeof(USBDeviceDescriptor), &dev_descriptor);
if (transfer_length_or_error.is_error())
return transfer_length_or_error.error();
@ -87,7 +86,7 @@ KResult Device::enumerate()
m_address = m_controller->allocate_address();
// Attempt to set devices address on the bus
transfer_length_or_error = m_default_pipe->control_transfer(USB_DEVICE_REQUEST_HOST_TO_DEVICE, USB_REQUEST_SET_ADDRESS, m_address, 0, 0, nullptr);
transfer_length_or_error = m_default_pipe->control_transfer(USB_REQUEST_TRANSFER_DIRECTION_HOST_TO_DEVICE, USB_REQUEST_SET_ADDRESS, m_address, 0, 0, nullptr);
if (transfer_length_or_error.is_error())
return transfer_length_or_error.error();