Re: libusb driver question: can't write to endpoint
Thomas Sailer <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <1173606258.16233.17.camel@unreal> |
On Sat, 2007-03-10 at 15:39 -0800, Phil Dibowitz wrote:
> while (bytes = read((int)fh, buf, SIZE)) {
> printf("writing %d bytes (%d)\n",SIZE,++i);
> if (usb_interrupt_write(udev, OUT_EP, buf, bytes, 2) < 0) {
read can return -1, at which point you stuff -1 into
usb_interrupt_write, which likely interprets the length as an unsigned
quantity, causing EFAULT.
Tom
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