📄 usbs-serial-intro.html
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>Introduction</H1
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>Introduction -- eCos support for USB Serial like Peripherals
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> The eCos USB-Serial package provides additional support for
USB peripherals that look like a serial port to the
host. These can follow the ACM communication device
specification or simpler devices which just have two bulk
endpoints. Microsoft Windows requires ACM mode. Linux should
operate with both modes, however ACM may cause problems since
the eCos driver does not implement all the class descriptors,
so generic mode is recommended.
</P
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> The USB-Serial package is not tied to any specific
hardware. It requires the presence of USB hardware on the
target and a suitable device driver to make endpoints
available for this code to use. The configuration system
cannot load the eCos package automatically for specific
targets, in the way that a USB device driver or an ethernet
driver can be loaded automatically. Instead, the package has
to be added explicitly. When using the command line tools this
will involve an operation like the following:
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> $ ecosconfig add usbs_serial
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> Typically, this will automatically cause the USB device driver
to become active.
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