Commit ebcf652d authored by Johan Hovold's avatar Johan Hovold Committed by Greg Kroah-Hartman
Browse files

Documentation: USB: fix example bulk-message timeout 



USB bulk-message timeouts are specified in milliseconds and should
specifically not vary with CONFIG_HZ.

Use a fixed five-second timeout in the "Writing USB Device Drivers"
example.

Signed-off-by: default avatarJohan Hovold <johan@kernel.org>
Link: https://lore.kernel.org/r/20211025115159.4954-2-johan@kernel.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e8d6336d

Documentation/driver-api/usb/writing_usb_driver.rst

+1 −1
Original line number Diff line number Diff line
@@ -234,7 +234,7 @@ error message. This can be shown with the following code:: 
			   skel->bulk_in_endpointAddr),

			   skel->bulk_in_buffer,

			   skel->bulk_in_size,

			   &count, HZ*10);

			   &count, 5000);

    /* if the read was successful, copy the data to user space */

    if (!retval) {

	    if (copy_to_user (buffer, skel->bulk_in_buffer, count))