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USBHost_t36
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Code Issues Releases Wiki Activity

Fix backward followup linking when creating a qTD group

This commit is contained in:
PaulStoffregen 2017-02-08 06:46:42 -08:00
parent 46324071f0
commit a649cbe12b
1 changed files with 4 additions and 3 deletions
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7
k66_usbhost.ino
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@ -609,12 +609,13 @@ bool new_Transfer(Pipe_t *pipe, void *buffer, uint32_t len)
Transfer_t *prev = NULL;
Transfer_t *p = halt;
while (p->qtd.next != (uint32_t)transfer) {
Transfer_t *n = (Transfer_t *)p->qtd.next;
Transfer_t *next = (Transfer_t *)p->qtd.next;
p->prev_followup = prev;
p->next_followup = n;
p->next_followup = next;
prev = p;
p = n;
p = next;
}
p->prev_followup = prev;
p->next_followup = NULL;
print(halt, p);
// add them to a followup list