Almost all USB-serial TIOCMIWAIT-implementations do not wake up processes sleeping on modem-status changes at port remove. This means that a process sleeping in TIOCMIWAIT will have to be manually interrupted after a device disconnect.
These patches fix all driver implementing TIOCMIWAIT except for ftdi_sio which is the only driver that currently handles disconnect, and mos7720 whose TIOCMIWAIT-implementation is so badly broken is does not even try to sleep (I'll remove it completely in later patch). Note also that the mos7840 implementation did not even wake processes up on modem-status changes, and that this is fixed separately below. The ftdi_sio driver was fixed last summer and the fix backported to stable. These patches probably should go in through 3.9-rc (at least the first mos7840-fix), but I leave that up to you to decide Greg. All patches, except pl2303, have been compile tested only. Johan v2: - fix the ch341, cypress_m8, f81232, io_edgeport patches - split the mos7840 fix in two - add fix also for spcp8x5 Johan Hovold (15): USB: ark3116: fix TIOCMIWAIT and disconnect USB: ch341: fix TIOCMIWAIT and disconnect USB: cypress_m8: fix TIOCMIWAIT and disconnect USB: f81232: fix TIOCMIWAIT and disconnect USB: io_edgeport: fix TIOCMIWAIT and disconnect USB: io_ti: fix TIOCMIWAIT and disconnect USB: mct_u232: fix TIOCMIWAIT and disconnect USB: mos7840: fix broken TIOCMIWAIT USB: mos7840: fix TIOCMIWAIT and disconnect USB: oti6858: fix TIOCMIWAIT and disconnect USB: pl2303: fix TIOCMIWAIT and disconnect USB: quatech2: fix TIOCMIWAIT and disconnect USB: spcp8x5: fix TIOCMIWAIT and disconnect USB: ssu100: fix TIOCMIWAIT and disconnect USB: ti_usb_3410_5052: fix TIOCMIWAIT and disconnect drivers/usb/serial/ark3116.c | 9 +++++---- drivers/usb/serial/ch341.c | 5 ++++- drivers/usb/serial/cypress_m8.c | 12 +++++++----- drivers/usb/serial/f81232.c | 4 ++++ drivers/usb/serial/io_edgeport.c | 9 ++++++--- drivers/usb/serial/io_ti.c | 10 +++++++--- drivers/usb/serial/mct_u232.c | 9 ++++++--- drivers/usb/serial/mos7840.c | 17 +++++++++++------ drivers/usb/serial/oti6858.c | 7 +++++++ drivers/usb/serial/pl2303.c | 4 ++++ drivers/usb/serial/quatech2.c | 13 ++++++------- drivers/usb/serial/spcp8x5.c | 4 ++++ drivers/usb/serial/ssu100.c | 13 ++++++------- drivers/usb/serial/ti_usb_3410_5052.c | 9 ++++++--- 14 files changed, 83 insertions(+), 42 deletions(-) -- 1.8.1.1 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
