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Merge pull request #430 from PanRe/fix-too-strict-iad-checks

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Fix too strict checks on subclass and protocol entries of iad descriptor.
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Ha Thach 2020-06-14 19:31:32 +07:00 committed by GitHub
commit 8a67f81397
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1 changed files with 3 additions and 5 deletions
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8
src/device/usbd.c
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@ -763,11 +763,9 @@ static bool process_set_config(uint8_t rhport, uint8_t cfg_num)
// If IAD exist, assign all interfaces to the same driver // If IAD exist, assign all interfaces to the same driver
if (desc_itf_assoc) if (desc_itf_assoc)
{ {
// IAD's first interface number and class/subclass/protocol should match with opened interface // IAD's first interface number and class should match with opened interface
TU_ASSERT(desc_itf_assoc->bFirstInterface == desc_itf->bInterfaceNumber && TU_ASSERT(desc_itf_assoc->bFirstInterface == desc_itf->bInterfaceNumber &&
desc_itf_assoc->bFunctionClass == desc_itf->bInterfaceClass && desc_itf_assoc->bFunctionClass == desc_itf->bInterfaceClass);
desc_itf_assoc->bFunctionSubClass == desc_itf->bInterfaceSubClass &&
desc_itf_assoc->bFunctionProtocol == desc_itf->bInterfaceProtocol);
for(uint8_t i=1; i<desc_itf_assoc->bInterfaceCount; i++) for(uint8_t i=1; i<desc_itf_assoc->bInterfaceCount; i++)
{ {