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Merge pull request #1877 from hathach/fix-host-cdc-without-iad

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Fix host cdc without iad
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Ha Thach 2023-02-01 11:18:04 +07:00 committed by GitHub
commit d6354a2aa7
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3 changed files with 16 additions and 3 deletions
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4
README.rst
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@ -1,7 +1,7 @@
.. figure:: docs/assets/logo.svg
:alt: TinyUSB
|Build Status| |Documentation Status| |License|
|Build Status| |Documentation Status| |Fuzzing Status| |License|
TinyUSB is an open-source cross-platform USB Host/Device stack for
embedded system, designed to be memory-safe with no dynamic allocation
@ -130,6 +130,8 @@ in your project.
:target: https://github.com/hathach/tinyusb/actions
.. |Documentation Status| image:: https://readthedocs.org/projects/tinyusb/badge/?version=latest
:target: https://docs.tinyusb.org/en/latest/?badge=latest
.. |Fuzzing Status| image:: https://oss-fuzz-build-logs.storage.googleapis.com/badges/tinyusb.svg
:target: https://oss-fuzz-build-logs.storage.googleapis.com/index.html#tinyusb
.. |License| image:: https://img.shields.io/badge/license-MIT-brightgreen.svg
:target: https://opensource.org/licenses/MIT

2
examples/device/hid_generic_inout/src/usb_descriptors.c
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@ -103,7 +103,7 @@ uint8_t const desc_configuration[] =
// Config number, interface count, string index, total length, attribute, power in mA
TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, 0x00, 100),
// Interface number, string index, protocol, report descriptor len, EP In & Out address, size & polling interval
// Interface number, string index, protocol, report descriptor len, EP Out & In address, size & polling interval
TUD_HID_INOUT_DESCRIPTOR(ITF_NUM_HID, 0, HID_ITF_PROTOCOL_NONE, sizeof(desc_hid_report), EPNUM_HID, 0x80 | EPNUM_HID, CFG_TUD_HID_EP_BUFSIZE, 10)
};

13
src/host/usbh.c
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@ -1522,7 +1522,7 @@ static bool _parse_configuration_descriptor(uint8_t dev_addr, tusb_desc_configur
#if CFG_TUH_MIDI
// MIDI has 2 interfaces (Audio Control v1 + MIDIStreaming) but does not have IAD
// manually increase the associated count
// manually force associated count = 2
if (1 == assoc_itf_count &&
TUSB_CLASS_AUDIO == desc_itf->bInterfaceClass &&
AUDIO_SUBCLASS_CONTROL == desc_itf->bInterfaceSubClass &&
@ -1532,6 +1532,17 @@ static bool _parse_configuration_descriptor(uint8_t dev_addr, tusb_desc_configur
}
#endif
#if CFG_TUH_CDC
// Some legacy CDC device does not use IAD but rather use device class as hint to combine 2 interfaces
// manually force associated count = 2
if (1 == assoc_itf_count &&
TUSB_CLASS_CDC == desc_itf->bInterfaceClass &&
CDC_COMM_SUBCLASS_ABSTRACT_CONTROL_MODEL == desc_itf->bInterfaceSubClass)
{
assoc_itf_count = 2;
}
#endif
uint16_t const drv_len = tu_desc_get_interface_total_len(desc_itf, assoc_itf_count, (uint16_t) (desc_end-p_desc));
TU_ASSERT(drv_len >= sizeof(tusb_desc_interface_t));