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67 lines
2.4 KiB
Plaintext
67 lines
2.4 KiB
Plaintext
Device drivers ported from the Linux kernel
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USB
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###
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Host controller
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~~~~~~~~~~~~~~~
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The driver will start all USB controller types a platform offers.
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Please consult repos/dde_linux/drivers/usb_host/README for a description.
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HID
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~~~
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Please consult repos/dde_linux/drivers/usb_hid/README for a description.
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Storage
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~~~~~~~
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Please consult repos/os/src/drivers/usb_block/README for a description.
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Network (Nic)
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~~~~~~~~~~~~~
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Please consolut repos/dde_linux/src/drivers/usb_net/README for a description.
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LXIP
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####
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LXIP is a port of the Linux TCP/IP stack to Genode. It is build as a shared
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library named 'lxip.lib.so'. The IP stack can be interfaced using Genode's
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version of 'libc' by linking your application to 'lxip_libc' plugin in your
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'target.mk' file.
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lx_kit
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######
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The modular lx_kit seperates the required back end functionality of the Linux
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emulation environment from the front end. Thereby each driver can reuse
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specific parts or supply more suitable implementations by itself. It is used to
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reduce the amount of redundant code in each driver.
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The lx_kit is split into several layers whose structure is as follows:
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The first layer in _repos/dde_linux/src/include/lx_emul_ contains those header
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files that provide the structural definitions and function declarations of the
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Linux API, e.g. _errno.h_ provides all error code values. The second layer in
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_repos/dde_linux/src/include/lx_emul/impl_ contains the implementation of
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selected functions, e.g. _slab.h_ provides the implementation of 'kmalloc()'.
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The lx_kit back end API is the third layer and provides the _Lx::Malloc_
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interface (_repos/dde_linux/src/include/lx_kit/malloc.h_) which is used to
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implement 'kmalloc()'. There are several generic implementations of the lx_kit
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interfaces that can be used by a driver.
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A driver typically includes a 'lx_emul/impl/xyz.h' header once directly in its
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lx_emul compilation unit. The lx_kit interface files are only included in those
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compilation units that use or implement the interface. If a driver wants to use
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a generic implementation it must add the source file to its source file list.
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The generic implementations are located in _repos/dde_linux/src/lx_kit/_.
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The modular lx_kit still depends on the private _lx_emul.h_ header file that is
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tailored to each driver. Since the lx_kit already contains much of the
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declarations and definitions that were originally placed in these private
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header files, those files can now ommit a large amount of code.
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