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| author | Kevin O'Connor <kevin@koconnor.net> | 2019-08-29 23:23:58 -0400 |
|---|---|---|
| committer | Kevin O'Connor <kevin@koconnor.net> | 2019-08-30 12:15:45 -0400 |
| commit | 917fd51057da6f3afd2260990012b6566156c61e (patch) | |
| tree | 73c0ba0732e74fb0b75c0eb74b851aa1759391bd /src/stm32/usbotg.c | |
| parent | 5e3acff8c734ec4413ba12e021089dc6fea1f53e (diff) | |
| download | kutter-917fd51057da6f3afd2260990012b6566156c61e.tar.gz kutter-917fd51057da6f3afd2260990012b6566156c61e.tar.xz kutter-917fd51057da6f3afd2260990012b6566156c61e.zip | |
stm32: Discard usbotg tx data until usb is ready
If the usb interface is not ready, just discard messages.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Diffstat (limited to 'src/stm32/usbotg.c')
| -rw-r--r-- | src/stm32/usbotg.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/stm32/usbotg.c b/src/stm32/usbotg.c index 99837a09..e1c880fb 100644 --- a/src/stm32/usbotg.c +++ b/src/stm32/usbotg.c @@ -160,8 +160,8 @@ usb_send_bulk_in(void *data, uint_fast8_t len) { uint32_t ctl = EPIN(USB_CDC_EP_BULK_IN)->DIEPCTL; if (!(ctl & USB_OTG_DIEPCTL_USBAEP)) - // Controller not enabled - return -2; + // Controller not enabled - discard data + return len; if (ctl & USB_OTG_DIEPCTL_EPENA) { // Wait for space to transmit OTGD->DIEPEMPMSK |= (1 << USB_CDC_EP_BULK_IN); |