diff options
| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-12 16:46:58 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-12 16:46:58 -0700 |
| commit | 9374430a52dfae5c013b88f7f030c04a6774d410 (patch) | |
| tree | ce1ee8eee4e79fbb9486e810278d1092afc74a44 /drivers/usb/serial/mct_u232.h | |
| parent | 66f49739fe1591197364f2dad1b67b975e8f5e85 (diff) | |
| parent | 13f9966b3ba5b45f47f2ea0eb0a90afceedfbb1f (diff) | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/usb-2.6: (149 commits)
USB: ohci-pnx4008: Remove unnecessary cast of return value of kzalloc
USB: additions to the quirk list
usb-storage: implement autosuspend
USB: cdc-acm: add new device id to option driver
USB: goku_udc trivial cleanups
USB: usb gadget stack can now -DDEBUG with Kconfig
usb gadget stack: remove usb_ep_*_buffer(), part 2
usb gadget stack: remove usb_ep_*_buffer(), part 1
USB: pxa2xx_udc -- cleanups, mostly removing dma hooks
USB: pxa2xx_udc: use generic gpio layer
USB: quirk for samsung printer
USB: usb/dma doc updates
USB: drivers/usb/storage/unusual_devs.h whitespace cleanup
USB: remove Makefile reference to obsolete OHCI_AT91
USB: io_*: remove bogus termios no change checks
USB: mos7720: remove bogus no termios change check
USB: visor and whiteheat: remove bogus termios change checks
USB: pl2303: remove bogus checks and fix speed support to use tty_get_baud_rate()
USB: mos7840.c: turn this into a serial driver
USB: make the usb_device numa_node get assigned from controller
...
Diffstat (limited to 'drivers/usb/serial/mct_u232.h')
| -rw-r--r-- | drivers/usb/serial/mct_u232.h | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/drivers/usb/serial/mct_u232.h b/drivers/usb/serial/mct_u232.h index 73dd0d984cd3..a61bac8f224a 100644 --- a/drivers/usb/serial/mct_u232.h +++ b/drivers/usb/serial/mct_u232.h @@ -63,14 +63,15 @@ #define MCT_U232_SET_UNKNOWN1_REQUEST 11 /* Unknown functionality */ #define MCT_U232_SET_UNKNOWN1_SIZE 1 -/* This USB device request code is not well understood. It is transmitted by - the MCT-supplied Windows driver whenever the baud rate changes. +/* This USB device request code appears to control whether CTS is required + during transmission. - Without this USB device request, the USB/RS-232 adapter will not write to - RS-232 devices which do not assert the 'CTS' signal. + Sending a zero byte allows data transmission to a device which is not + asserting CTS. Sending a '1' byte will cause transmission to be deferred + until the device asserts CTS. */ -#define MCT_U232_SET_UNKNOWN2_REQUEST 12 /* Unknown functionality */ -#define MCT_U232_SET_UNKNOWN2_SIZE 1 +#define MCT_U232_SET_CTS_REQUEST 12 +#define MCT_U232_SET_CTS_SIZE 1 /* * Baud rate (divisor) @@ -439,7 +440,7 @@ static int mct_u232_calculate_baud_rate(struct usb_serial *serial, int value); * which says "U232-P9" ;-) * * The circuit board inside the adaptor contains a Philips PDIUSBD12 - * USB endpoint chip and a Phillips P87C52UBAA microcontroller with + * USB endpoint chip and a Philips P87C52UBAA microcontroller with * embedded UART. Exhaustive documentation for these is available at: * * http://www.semiconductors.philips.com/pip/p87c52ubaa |