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Better way to retry when hrJERR is returned

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This commit is contained in:
Kristian Sloth Lauszus 2013-10-08 18:27:51 +02:00
parent 6adc0843d5
commit 3b733fc962
1 changed files with 3 additions and 4 deletions
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7
Usb.cpp
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@ -566,10 +566,10 @@ uint8_t USB::DefaultAddressing(uint8_t parent, uint8_t port, bool lowspeed) {
};
uint8_t USB::AttemptConfig(uint8_t driver, uint8_t parent, uint8_t port, bool lowspeed) {
uint8_t rcode = 0;
//printf("AttemptConfig: parent = %i, port = %i\r\n", parent, port);
rcode = devConfig[driver]->ConfigureDevice(parent, port, lowspeed);
again:
uint8_t rcode = devConfig[driver]->ConfigureDevice(parent, port, lowspeed);
if (rcode == USB_ERROR_CONFIG_REQUIRES_ADDITIONAL_RESET) {
if (parent == 0) {
// Send a bus reset on the root interface.
@ -585,8 +585,7 @@ uint8_t USB::AttemptConfig(uint8_t driver, uint8_t parent, uint8_t port, bool lo
rcode = devConfig[driver]->Init(parent, port, lowspeed);
if (rcode == hrJERR) { // Some devices returns this when plugged in - trying to initialize the device again usually works
delay(100);
devConfig[driver]->ConfigureDevice(parent, port, lowspeed); // Just ignore the returned value
rcode = devConfig[driver]->Init(parent, port, lowspeed);
goto again;
}
if (rcode) {
// Issue a bus reset, because the device may be in a limbo state