v2: Rebased on top of master and retested For larger files, not only do we keep reallocating to increase the mtp buffer size, the write also happens in one go. This does two things:
Write to file upto a certain data size we have received so far and second, reuse the buffer again instead of reallocating to a larger buffer size. Tested with different file sizes on a Linux guest. Bandan Das (2): usb-mtp: Reallocate buffer in multiples of MTP_WRITE_BUF_SZ usb-mtp: breakup MTP write into smaller chunks hw/usb/dev-mtp.c | 154 ++++++++++++++++++++++++++++++----------------- 1 file changed, 100 insertions(+), 54 deletions(-) -- 2.19.2