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sg_set_timeout
2003 Jun 11
1
Palm m50x & the USB stack
...the HotSync endpoint
for HotSyncs (endpoint 1 is listed as "Generic" in the endpoint
descriptions). Relevant code is then:
i = 0; /* 0 or USBD_SHORT_XFER_OK */
if (ioctl(endpoint_fd, USB_SET_SHORT_XFER, &i) < 0) {
i = 50;
if (ioctl(endpoint_fd, USB_SET_TIMEOUT, &i) < 0) {
later, writes to the endpoint go fine, but a read() on the endpoint_fd returns
immediately with ETIMEDOUT if the USB_TIMEOUT is non-0. I've started
following this through the ugen code, but get totally lost in kernel
intricacies. Mostly I need a good way to dump debug inf...