diff options
Diffstat (limited to 'src/class')
| -rw-r--r-- | src/class/msc/msc_device.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/class/msc/msc_device.c b/src/class/msc/msc_device.c index 15bfafc35..be40c37e7 100644 --- a/src/class/msc/msc_device.c +++ b/src/class/msc/msc_device.c @@ -121,7 +121,12 @@ TU_ATTR_ALWAYS_INLINE static inline bool send_csw(mscd_interface_t* p_msc) { TU_ATTR_ALWAYS_INLINE static inline bool prepare_cbw(mscd_interface_t* p_msc) { uint8_t rhport = p_msc->rhport; p_msc->stage = MSC_STAGE_CMD; - return usbd_edpt_xfer(rhport, p_msc->ep_out, _mscd_epbuf.buf, sizeof(msc_cbw_t), false); + // Skip command stage until Clear Stall request if endpoint is stalled + if (!usbd_edpt_stalled(rhport, p_msc->ep_out)) { + return usbd_edpt_xfer(rhport, p_msc->ep_out, _mscd_epbuf.buf, sizeof(msc_cbw_t), false); + } else { + return true; + } } static void fail_scsi_op(mscd_interface_t* p_msc, uint8_t status) { |