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Improved Linux USB Driver » History » Version 2

laforge, 07/25/2022 08:22 AM

1 1 laforge
h1. Improved Linux USB Driver
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As seen in [[Android_USB_Gadget]], the configuration of the USB gadget is highly configurable and can be changed dynamically at runtime.
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The Linux kernel driver however contains fixed interface numbers and simply always assumes a certain configuratin/composition with given ordering.  This is highly inflexible.
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Therefore, we propoes a series of changes to the Linux kernel qmi_wwan.c and qcserial.c drivers which dynamically detect the type of an interface (virtual serial, rmnet, adb, diag) in any order or quantity of ports.
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The patches can be found at https://gitea.osmocom.org/phone-side/quectel-experiments/src/branch/master/host-drivers and we'll try to get them mainline soon.
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